Harley evo carburetor adjustment. Make sure it is plugged if not required.
Harley evo carburetor adjustment. Keihin CV Carb Identification.
Harley evo carburetor adjustment The maximum recommended hole size for the slide port should Shop for 1986 Harley-Davidson Sportster - XLH 883 Carburetors at Dennis Kirk. Idle Cable Length: Carburetors 1988 Harley-Davidson Heritage Softail Classic - FLSTC. The ride to work today (16 miles) was ok, but the engine had some additional vibration. How to fine tune a Harley stock carb that will keep up with the big boys. bigbadal. This situation is not caused by the carb nor can it be fixed by adjusting the carb. You will see a zinc plated nut. ADMIN MOD Needs choke? Or Carb adjust? New rider, even newer bike mechanic. 24. 5 to 1 compression), Dyna TC88 ignition running the 38A setting, and a Rinehart 2-1 exhaust. I just got a SE CV44 carb and intake for my bike and wanted to know if anyone could recommend some initial tuning settings for this carb. Breather Bolts For your 1991-UP Sportster & EVO Big Twin Harley Brass or Stainless-Steel The Yost air adjusting screws are designed for easy adjustment with their knurled and slotted head. EVO. a That said - your bike does not have a choke. It also does not have a c-clip for adjustment, or any washers installed. Applies to New 014052 40MM Chrome Plated Carburetor Only. (saves How to tune your CV carburetor rebuild & float adjustment Tutorial ep18 Roma Custom Bike 116K views6 years ago Custom Cez Custom Cez explains the carburetor rebuild and adjustment on his CV Harley Davidson carburetor, even for sportster ones. CV Carburetor Jet Adjustment/Trouble Shooting - Harley Davidson Community CV Carb Circuits - Shop Harley Carburetor & Fuel Injection Parts at Breather Bolts For 91-UP Sportster & EVO Big Twin TC Bros. Air Fuel Ratio/Lambda for Evo My bike has RevTech 100 inches Evo style engine, Mikuni HSR 42 carb, single fire ignition with dual plug heads. Changing Jets: Main Jet: This can be changed either with the fuel bowl installed or off the car-buretor. Thank you for watching. When the game of life throws you a curve twist the wick and learn to swerve~~Wino Grey Ghost is a 2001 Softail FXST S&S Super E w/ High flow filter, Sep 11, 2022 · I wouldn't start at 3 turns out though (at least not on an Evo) for adjusting the afr. Do not pull hard or at an angle or it could break the knob. Mikuni Kit #42-7, 001 Dec 5, 2024 · Harley Davidson HSR42-7 Mikuni Carburetor EVO Kit 1340 Big Twin Evolution (1990-99) CV Replacement Kit. Contact us: 800-969-7501 As low as 0% APR for up to 12 months with Aug 1, 2021 · Dan, there's a lot of YouTube videos on the carburetor. I showed it to my roomie, along with the innards of the first one to clarify the differences and he is convinced it’s an EPA thing, so as to prevent adjustment. Step by step instruction on removing the CV carburetor on 2000 Road King. Jump to Latest Initially, I did not adjust the idle mixture; however, it appeared that I was running too lean (lots of carb farts). The carb I had was a 38MM. So I bought a new S&S carb & intake manifold for another $500 and it still backfires. If it is the arm itself that strikes the top of the carburetor, you may have to consider modifying the arm. 800-969-7501 Evo Sportster Style; Idle Cable Length: 30 in. Harley CV carburetors Before S&S Cycle became the premier performance engine manufacture in the v-twin motorcycle space, we were known for our carburetors. Harley-Davidson Motor Co. adjustments to the A/F mixture will not be possible. Set the idle to 1000 rpm . (a hair's width) At full 93 evo motor, straight pipes not sure about carb pretty much stock. OR just run a new hose from the carb to the VOES. Adjusting idle speed– is the process of setting the RPM (revolutions per minute) at which an engine runs when it is idling. It's a Keihin, but it differs both from the stock carb of the time and the later CV carbs. *On new evolution motors using the 014052 carburetor, install the vacuum spark advance tube. Or fastest delivery Tue, Jan 7. Start engine. Mikuni HSR 42 - how to set pilot air screw (idle mixture) adjust the pilot air screw in slowly until the idle either slows or becomes irregular, then turn the screw out until the engine again slows or begins to idle irregularly. It feels like ample power, way more than my 883 anyway. It is recommended that SCREAMIN’ EAGLE air cleaner kits be used with these carburetors. I can go to the car shop and use a gas analyzer. $19. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. Remove nut, spring and plunger from the Mikuni. The biggest obstacle to tuning your carburetor’s mixture setting has always been accessibility. 4. Buy CV40 Carburetor Replacement for Harley Davidson Sportster 1200 XLH1200 Sportster 883 XL883 1998-2016 / Softail 1988-2017 / Dyna FXR FXD 1988-2016 / Touring 1988-2016 27490-04: Direct replacement with no/little adjustment, Both the carburetor and idle screw have interlinked tasks. US Navy Veteran 1974-1979 (AD2), FAA A&P Mechanic since 1980, 1989 FLSTC, 2016 FLHR, 2019 FLHT, 2022 FLHTCTGU. Site Supporter; Full I did a complete rebuild by following the instructions in the Harley maintenance manual. Evo, 1340. I really liked the carb. Start the engine & adjust the Idle Set Screw (it should require very little adjustment) for the proper idle speed, typically Jan 2, 2024 · EVO: Carburetor, Intake Manifold & Exhaust - Sub-01B. Jan 7, 2025 · 42mm Flat slide Mikuni Type Carburetor kit Harley Davidson Evo 1340cc 1990- 1999 quantity. EVO: Carburetor, Intake Manifold & Exhaust - Sub-01A. Kick and Electric start Chase the port with carb spray. The CV design was used from 1988, with the 1989 models getting an upgraded version with an accelerator pump. The key to performance on your motorcycle is proper adjustment of the mixture screw EZ-Just to fine tune following any change such as a rejet, exhaust change, or Adjust the screw 1/2 turn at a time. I'd like to get a new one as I've heard the Keihin they came with aren't great. basically the soft squishy parts that tend to wear out or get damaged. The maximum recommended hole size for the slide port should Jun 25, 2017 · My Sportster Experience: Idle Speed Adjustment on a Harley-Davidson Sportster That took a while to figure out, turns out my knee was pushing against the carburetor. In this 15:33NOW PLAYING 04 How to inspect and adjust float level on a carburetor. The first told me it was the jets and charged me $500 but that did not work, then I took it to the second and they rebuilt my After removing the carburetor I ordered a rebuild kit from www. Add to cart- 1. The EVO Carburetor Throttle Cable brake lever bracket Short for Harley Davidson by V-Twin is another Reproduction and original parts for the restoration of the Linkert and Schebler carburetors supplied on antique Harley Davidson and Indian motorcycles. This time with an '85 FXRS (Lowrider Sport). This video shows our students setting the float height on a carburetor commonly found on powersports, Harley and Asian engines . Recently it started backfiring and sputtereing when cold, but 5-10min into the ride it runs fine with only slight hesitation when taking off. The next step was to install the carb and adjust t The Harley-Davidson 56871-08 BRACKET THROTTLE CABLE GUIDE S&S SUPER E G HARLEY CARBURETOR is available with a length of Drag Specialties offers a comprehensive Harley Pushrod Adjustment Chart for motorcycle enthusiasts. Harley-Davidson has changed the configuration of a carburetor float pin pedestal. you probably just knocked it out of adjustment. It is wise to monitor air/fuel ratios when engine/carburetor tuning. Exploded view; 1) Disassembly. Basic Linkert M series Hello everyone, new owner here, my scoot is a hybrid, the VIN says it is an FXRDG, the engine is a built engine, the top end is stock EVO, the jugs are S&S, the carb is S&S, the bottom end is Delkrondon't have any experience with HD, but am a good wrench,,,,I know the engine is strong. Follow these steps Discover how to adjust a carburetor on your Harley Davidson for optimal performance. » Velocity stacks: how they work, and how to select them. From there after the proper jetting is achieved, the idle mixture screw should be lightly seated In this video we tackle the rebuild process from the carburetor cleaning to a few modifications and especially the float adjustment of a Harley Davidson CV carburetor utilizing a standard rebuild kit. COM. Forums. _whitey_ New Member. You can adjust that to get adjustment (a) to begin pulling both throttles to the same position, so a proper sync can be done. The carburetor converts gas and air to power your bike. STFUppercuttt. ) Make sure that the cables are not kinked or have any tight bends in them. cables. Tighten this ONLY SLIGHTLY. Install the assembly into the Mikuni HSR carburetor. EVO 1340 Setting Carb Float; Setting Carb Float. 1-7/8 Inch bore. including how to Mar 16, 2012 · EVO CV Lean Question. I always cut the under tank zip-tie to avoid this problem. ). Make sure it is plugged if not required. Started by muff, August 07, 2014, 07:17:13 PM. Sure, we built stroker kits and big bore kits, but they didn’t make power without our carbs. Pull the fuel hose off the carb and replace the hose (car part store). Introduction To Harley Davidson Cv Carburetor. 67 (16mm -17mm), with the inlet vlave fully closed. NOTE: All cam specifications - Lift, Duration and timing figures are listed on the instruction sheets for each of the above noted engines! Shovel-Pan Cam Specs and Instructions EVO CV Lean Question. Then, fine-tune the accelerator pump for better throttle response. Aug 19, 2009 #4 Check the VOES switch and the intake boots. Threads might be different in your carburetor so it’s worth having a look. com. Watch as he swaps his CV carb for a 42mm Mikuni! A pushrod adjustment is a crucial maintenance procedure for Harley-Davidson's iconic Evolution (EVO) engines. One of the most common problems that customers complain about is the spit-cough-pop from the carburetor as a Harley goes from idle to ¼ throttle. MPH Calculations; H-D Big Twin 5 Speed . Replace the needle, carefully screwing it all the way in until it lightly seats. Contributor. You have an entichener. Now I don’t know if you’ve ever tried to adjust a Harley’s mixture Shop for 1988 Harley-Davidson Heritage Softail Classic - FLSTC Carburetors at Dennis Kirk. groove. Step by step description to rejet your Harley carb. SIKUAI Motorcycle For Mikuni HSR Carburetor Pilot Air Adjustment Screw HSR42 HSR45 HSR48. When I’m reading posts there Sep 17, 2011 · Harley Davidson Motorcycles. The VOES will be inop then. Find the brass screw on the carburetor This adjustment process is known as balancing the idle mixture. I'll try installing the 45 and see if I get some adjustment. These air-cooled V-twin engines, produced from 1984 to 1999, feature pushrods that transfer motion from the camshafts to the rocker arms, ultimately opening and closing the valves. This will apply to most Harley carbureted bikes from EVO up. hose to the VOES and plug the other end. Rebuilding the Keihin CV Carb. Carb adjustment- running rich. Most carburetor kits are nothing more than a few gaskets, o-rings, needle and seat, diaphragms, etc. Thanks in advance for any help, Bill Hossamania. 1- Verify carburetor is set to stock settings: a- Idle mixture screw, 11/4 turns from lightly seated. Fits all year groups - carburetor only. Bought the bike in 2000 the guy I bought it from was a perfectionist and the bike always ran flawlessly. The mixture screw only really has an effect at idle although the adjustment of it will let you know if the slow jet is of sufficient size Welcome to The Forum Fuel and Carb Related Issues - Harley Davidson Community Have a look Carb Install & Throttle cable adjustment After getting the CV carb rebuilt for the Harley Davidson FXR. 3. 1989 FLSTC. tall terry 37 Replies. Its power advantage only begins to show at well above 5,000 rpm. Earlier models equipped with the older butterfly style carbs (pre-89 Evo's, Shovelheads, Pans, and Ironheads) are excellent candidates for upgrading to a modern Harley carburetor . The Mikuni choke cable is more flexible and less likely 1994 Dyna, Mikuni 42 carb. This is done by adjusting the throttle plate or idle air bypass screw. Comes with all the necessary - The air/fuel ratio may be too rich as a result of incorrect carburetor adjustment or a poorly performing fuel injection system. FREE delivery Jan 15 - 21. In addition to the screwdriver, a drill may be required to create a hole in the soft metal plug A shorter bolt (Harley fits either of two bolt lengths) or a "button" head bolt mounted with the head down often cures the clearance problem. The needle appears as if it cannot be removed at all though. My current Evo runs a D&D Low Cat 2-1 with the louvered baffle, but that's too much pipe for a stage 1 (my current Evo is a stage 3 build Jul 17, 2014 · adjustments to one idle mixture screw are imperceptible to ordinary mortals. 57 Part #: 175754 Mfg Part #: Dec 1, 2024 · Take the majority of the slack out of the cables at the carburetor adjustments or throttle body first, and fine-tune the adjustments at the throttle housing. Ple Watch as he swaps his CV carb for a 42mm Mikuni! We do a Sunday morning film session at Geo's. . (If it even needs any further adjustment). Read more about how to upgrade your Harley carb Oct 12, 2024 · Here's a dirty little secret; "rebuilding" a carburetor is mostly just taking it apart, cleaning it, then putting it back together. He later sold the rights to Edelbrock. rootintootin 56 Replies. The HSR42 is easier to mount as it uses the stock manifold while the HSR45 needs the larger Harley Screamin’ Eagle or Mikuni manifold. If your bike won’t run without the choke, you most likely have a clogged pilot/slow/intermediate (whatever your carburetor manufacturer calls it) or an intake leak. fin_676 Experienced Member. S&S super E carb, Andrew B grind cam. Save Share See my bikes at http://www. Once The idle mixture screw is on the top of the carb, back towards the manifold flange, kinda going straight down. so for me, it was 1) the bracket itself hits the top of the carb Jordan and Ben team up to save the world from the savage effects of ethanol one carburetor at a time while battling the evil forces of Kuryakyn, destroyer of Sorry about the annoying click. S. 73 4spd trans. Proper method to throttle adjustment: 1. I have straight drag pipes. Full Member; Posts: 1,115; Location: Saskatchewan HSR42 Carburetor for Mikuni HSR42mm fits Harley Evo Evolution Twin Cam. Carb - Float Adjustment: When adjusting the carb float, the body of the carb should be held at an angle (15 - 20 degrees) making a wedge of wood at 18 degrees (the center of the angle) and setting the carb throat (the side that goes into the maifold) on the wedge of wood and then measuring the float setting (the distance from the "bottom" of the float to the edge of the Choke adjustment. Access this jet by and the carburetor (figure 1). If you have a bolt-in cam and no head work, my recommendation would be the same as SCHMIDTY, start with a 185 or 190 main and a 45 pilot This video shows our students setting the float height on a carburetor commonly found on powersports, Harley and Asian engines . This precision instrument contributes significantly to Harley Davidson bikes’ performance by Jan 22, 2002 · Figure 2: Choke cable adjustments Mikuni Cable (Evo Kits: 42-8, 45-2 & 45-3): 1. The EVO Carburetor Throttle Cable brake lever Apr 27, 2012 · Carburetor Tuning - Carburetor tuning will be most effective when power/dyno feedback is available. Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the Cycle Pro High Performance CV 40mm Carburetor. Looking at the carb with the aircleaner in place the idle adjust screw is on the right side by the throttle cables . SKU: C202 Categories: Big Twin 1340 Evo 1984-1999, Carburetor, Carburetor. Fuel screws are a total different animal and on the top in the front of the carb. To adjust the knob, gently pull it out to the full length and let go. When you open it, the carburetor allows more fuel to flow essentially achieving the same effect. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Jul 19, 2024 · Troubleshooting a Harley Davidson CV carburetor often involves checking for clogs and ensuring proper float bowl level. My bike currently has drag pipes and other than that is a stock 1340cc Evo. b-Idle speed screw, ½ turn clockwise from engagement point. Staff member. This can be done by turning off the engine when it is not needed, 3- Accelerator Pump Adjustment Screw 4- Enrichment Device 5- Serial Number 10- Accelerator Pump Pushrod 11- Intermediate Jet 12- Main Jet 13- Main Jet Air Bleed WWW. Save Share Reply Quote Like. Also offering completely rebuilt Linkert / Schebler carbs. The carburetor will have an o-ring installed in a groove that will go towards the flat part of the in-sulator block. Carburetor Rebuild Kit for Keihn Carb - 35-0196 V-Twin Manufacturing. A rebuild kit for the stock Keihin "BH" butterfly carb (non CV) used between 40mm CV carburetor with a natural finish and black top. Aug 14, 2010 #2 CV Carburetor Jet Adjustment/Trouble Shooting - Harley Davidson Community TQ . The correct fine-tuning of the mixture is very important for the performance of the carburetor and should be done when replacing the carburetor. Screw D is the common idle adjust screw, which opens both throttle the same amount, once the sync adjustment is Jul 8, 2023 · The Harley-Davidson 56871-08 BRACKET THROTTLE CABLE GUIDE S&S SUPER E G HARLEY CARBURETOR is available with a length of throttle and idle cables, making it ideal for a wide range of applications. Jan 7, 2025 · A shorter bolt (Harley fits either of two bolt lengths) or a "button" head bolt mounted with the head down often cures the clearance problem. General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Twin Cam Touring Anything and everything related to Harley-Davidson motorcycles and the people who ride them. From 1986-1987, the stock Sportster carburetor was a Keihin 34mm, fixed-venturi “butterfly” model, as used on the Ironhead models from 1979 onward (BT models still used the 38mm version). After all, there hasn’t been a carbureted Harley-Davidson® model since 2006. Watch as he swaps his CV carb for a 42mm Mikuni! Sportster Carburetor Jet Sizes KEIHIN CARBURETOR MAIN JET SIZES 1988 TO 2006 Year 1988 Engine 883 – Jet Size 170 (California 165) Adjustment screw is 2 turns Before the rejeting I had a lot of popping and It is a bit different. Minimizing idling time– is the practice of reducing the amount of time that an engine is running when it is not in use. Next, release both throttle cables from their adjusters, which are located just First off warm the engine up completely and make sure the enricher is fully off. Shop our complete selection of Harley-Davidson Motorcycle parts and accessories including the Cycle Pro High Performance CV 40mm Carburetor - 30100. flame throwersthe electrics are a Also, the adjustment on when the accell pump comes 'on' is a factor. 0 Members and 3 Guests are viewing this topic. Can't keep it running after choke is off. com EVO: Carburetor, Intake Manifold & Exhaust - Sportsterpedia Rebuild kit parts Hello everyone, new owner here, my scoot is a hybrid, the VIN says it is an FXRDG, the engine is a built engine, the top end is stock EVO, the jugs are S&S, the carb is S&S, the bottom end is Delkrondon't have any experience with HD, but am a good wrench,,,,I know the engine is strong. Some ignitions offer One of the things that was done by the first guy was to switch the carb to evo style cv carb. 1973 FX frame chopped in the rear with rigid welded in place. (saves Look behind the Harley enrichener cable bracket. Started by btribley, November ideally a bolt-on carburetor with a mixture adjustment. Everything is home made and DIY as usual! Proper adjustment of the mixture screw is critical to achieving the best balance between power and fuel efficiency. Part Number 78-112 is used with R1 Carburetor. Home. Overview - Basic Stock Carb Model Info . This article delves into the impact of a misadjusted carburetor, key components Harley carburetor jetting made simple. Mount new carburetor in place of old Keihin or older Bendix or Tillotson carburetor, using proper studs and mounting hardware. E. Something loose? I took it to both of the Harley Dealers in my area. The float adjustment spec is 0. On Harley-Davidson bikes, the air filter will come off the side of the engine and face the rear of the bike. Uses stock choke cable, manifold and air cleaner. Top Contributors this Month View All. Chase the port with carb spray. May 26, 2016 · carburetor. In this procedure, we instead pay careful attention to the behavior of the bike as it transitions off idle and then returns to idle, and adjust all idle mixture screws to the same setting. The performance advantage of the 45mm carb means very little to most of us. Adjusting the carburetor idle means reducing the rate at which air and fuel mix together in the carburetor. Sep 12, 2009 I have a late 90's EVO as well with a cv carb. My bike has the original OEM carb on it from 1989. Contrary to popular folklore, all Keihin non-CV carbs did come with accelerator In this video we tackle the rebuild process from the carburetor cleaning to a few modifications and especially the float adjustment of a Harley Davidson CV carburetor utilizing a standard rebuild kit. It gives you some leeway if the float goes out of alignment either way while in service. They said the compression test looked good. Precisely CNC-machined from billet aluminum Ultima® Evo competition series Engines Instructions General Specifications 80” 127 and 140 will be lower if the ‘G’ Carb or 45mm Mikuni is used without modification or replaced by a larger bore Carburetor. ) Some aftermarket needles are longer than the original and will really screw up the adjustment. hoohoohoblin. After each adjustment, reset the idle speed to 1,000 rpm. You may question the relevance of carburetors today. Generally you start at 1-3/8 to 2 turns out or something. Bottom end is 58 panhead topped with 66 shovelhead. Stock CV, Dyna 2000, Kerker/ST, Billet foward and brake For what it's worth, my Evo is more hopped up than yours and I run a 195 main on a 45 pilot with an adjustable Dynojet needle that's on the second leanest notch if I remember right. Engine Type: Evolution Style; Throttle Cable Length: 32 7/16 in. nl . So check which you have. When running the bike at idle or very low throttle position, the fuel is coming through the main jet in massive amounts. Sep 12, 2009 · A Friendly Reminder - Harley Davidson Community . May 14, 2022 · Find the Cycle Pro High Performance CV 40mm Carburetor - 30100 at Dennis Kirk. » Air filter sizing and selection. I ended up using a 42 pilot jet and a 190 main May 23, 2009 · Next, every bike needs proper jetting, even on a stock evo, i run a 46 to 47 slow jet depending on altitude, secondly, I recommend changing the stock needle, some people use 89 sporster needles, i use bob woods kt1 needles in all my bikes, and then the main should fall between 180-190 main, depending on altitude. Set the air Jul 1, 2024 · EVO: Carburetor, Intake Manifold & Exhaust. CV Carb. CV Carburetor Jet EVO: Carburetor, Intake Manifold & Exhaust - Sub-01A. '01 FLHRCI converted to carb, 95", Andrews 26g cams, Wood 2* advance key, Sta-bo kit, I'm curious cause I have a similar setup and the same 'no response to idle mixture adjustment'. 24 $ 9. glider Veteran Member. Reasons why both spark plugs keep fouling on my 1993 1340 evo harley davidson. Nothing serious, but something to note. Harley Carburetor and Motorcycle Parts . Sorry about the annoying click. Thread starter _whitey_; Start date Mar 16, 2012; W. Aug 5, 2008 · No tricks to the adjustment other than the proper size screwdriver and let the bike warm up completely before starting on the adjustment. In this 15:33NOW PLAYING Oct 31, 2024 · It is difficult to do on the bike, which is why the procedure in the manual only references the one at (a). But, depending on the setup, it's not uncommon for the end of the exhaust to be black, especially with a carburetor. The Mikuni choke cable is more flexible and less likely Setting Timing On An EVO - Harley Davidson Community TQ . -42. And therefore, it shares similar parts which perform similar functions. Ensuring your Harley runs smoothly and efficiently To tune a Harley carburetor, start by adjusting the idle mixture and setting the idle speed. troqed 38 Replies. At the time, the carb was owned by Red Edmonson (? spelling) who actually designed it. Mikuni Tuning product on installing and adjusting Mikuni VM carburetors on Harley-Davidson 45, UL & 74 “Mikuni ‘VM’ Tuning for » Mixture adjustment for big cams. Installation instructions >>> Link to PDF >> HSR42 42-7 42-18 Installation Instructions-HSR42 Mikuni Big twin Nov 8, 2024 · Pushrod adjustment on your Harley Davidson EVO motorcycle is a crucial aspect of a comprehensive preventive maintenance plan. Check for free-play. 00 $ 99. There is a main jet access plug on the bottom towards the air cleaner side, on the right side of the carb as you look EVO: Carburetor, Intake Manifold & Exhaust - Sub-01A. POS Carbs There were at least three versions of these carbs - and none worked all that well. Keihin CV Carb Identification. TQuentin1 Well-Known Member. General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Twin Cam Touring My Story, the Beginning Harley-Davidson FXR. Add to cart. 5 degrees is the mid-point between the two extremes you can set the float. Installation instructions >>> Link to PDF >> HSR42 42-7 42-18 Installation Instructions-HSR42 Mikuni Big twin carburetor kit. O. Previous topic - Next topic. Regular adjustments ensure that the pushrods are set to the correct specifications, allowing for proper May 23, 2011 · Hello I'm planning to tune the carburetor. I was told to go with either a CV carb that we all know and love or a Mikuni. At idle, which means when the engine is not working or moving, Jul 20, 2020 · all Harley carbs from 1989 to present that use the CV style Harley Davidson carburetor . $99. for my 1987 FLHT 80 ci EVO Hi Buddy, there is an adjustable needle, and it has a quick clip in the 4th groove from the top of needle, (this neddle has 6 grooves) and there is 3 shims/spacers that takes it up almost to the 2nd. Evolution 80 Standard Pushrod Instruction. Part Number 78-113 is used with R2 Carburetor. General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Twin Cam Touring My Story, the Bike is 99 Evo 1340cc with Keihin CV carb. The main jet installed is #190 Replaces OEM No: 27490-96A, 27421-99C, 24790-04 Stock for: 1988-2006 Sportster Will Fit 1957-85 Ironheads with our CV Manifold Adapter CALIFORNIA DISCLAIMER: Not for use on public roads. I was very surprised how little throttle it takes to cruise, so I set my accel pump adjustment to be 'off' in my normal cruise position. The CV is capable of supporting a 90 HP engine. FREE delivery Fri, Jan 10. T. Adjust the cable as necessary. Top Contributors this Month Air screw are at the bottom back of the intake bell. What's new From the seat of pants perspective, maybe a "trifle softer" but not really much difference as your CV carburetor (slight delay of the diaphram response) makes throttle response to actually feel more crisp. Jump to Latest General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Twin Cam Touring My Story, the Beginning Harley-Davidson FXR. The Fora platform includes forum software by XenForo. Feb 29, 2024 · Credit: catalog. 17. Doubt that would function good on a 107". Weather changes affect carburetor settings. zodiac. Adjust the air/fuel mixture for cold or hot weather. flame throwersthe electrics are a Harley Davidson Iron Head and Evolution Sportster Idle Mixture Adjustment Screw. I readjusted the idle mixture about 2 1/2 turns from the closed position with nice results. Harley Davidson carburetor tuning including simple instructions for getting the most out of your ride. Idle and just off-idle SCREAMIN' EAGLE® BIG BORE 44 mm CV CARBURETOR KIT ® General This kit is designed for use on 1984 through 1999 1340 Evolution engines and 1999 and later Twin Cam 88™ engines. Stock CV, Dyna 2000, Kerker/ST, Billet foward and brake Harley Davidson HSR42-7 Mikuni Carburetor EVO Kit 1340 Big Twin Evolution (1990-99) CV Replacement Kit. This condition results in poor mileage and a poor idle. Harley Davidson Motorcycles. Tools Needed for Adjustment. To adjust your Harley Davidson CV carburetor, you'll primarily need a screwdriver as the main tool. We will assume that you are starting with correctly cleaned carbs, jetting spot-on, Jun 19, 2010 · I have a 1200 and had a 45 slow jet installed but got no adjustment on the air mix. ) Loosen and put slack in both the throttle (pull) and Idle (pull) cable until the carb linkage arm bottoms out on the throttle stop, then back it off about 1/16". If it did leak before, the float valve tip is probably worn or hardened, and needs to be replaced. Softail Models . Sportster models from 2007-later use fuel-injection. $9. The truth is t TUNING INSTRUCTIONS For Harley-Davidson Carburetors ©2003 Edelbrock Corporation mount manifolds will work with Edelbrock Edelbrock cables can be used in place of OE cables on all flange style carburetors. This kits adds roughy 25% more power to your bike combined with an exhaust and free flowing air filter. Eventually I ditched those pipes for a Vance & Hines 2-1 Pro Pipe, which is probably one of the best performing pipes for a stage 1 Evo. The maximum adjustment range is 1/2 to 3-1/2 turns. Sort by Oldest first Oldest first Newest first Most reactions. It’s your choice. G. The o-ring side of the insulator block will then install against the intake manifold (figure 2). After each adjustment reset the idle speed back to 1000 rpm and check the engine Aug 14, 2010 · Bike is 99 Evo 1340cc with Keihin HDTIMELINE. Find the Cycle Pro High Performance CV 40mm Carburetor at Dennis Kirk. It features a flexible shaft and a large adjuster knob with knurled edge which allows carb adjustment without a screwdriver and as fast as you can say and Keihin (butterfly) manifolds. 2002 Deuce, 88 Evo S&S Super Carb S&S air intake Cam upgraded Problem: she doesn’t like the choke dropped all the way, until much MUCH longer than expected. The EVO Sportsters have used Keihin carburetors from 1986-2006. This results in too much slack at the carb end and not enough at the bar end. If the idle mixture requires adjustment, start at the initial set-ting of one turn out and the idle speed at 1000 rpm. www. Do your own work and On a car, the air filter will be large and round, and it will sit on top of the carburetor. This can occur on any model, any carburetor, but seems to happen most often with the stock CV Keihin carburetors used on the newer (90 up) Big Twins and Sportster models. The CV design was used from 1988, The Transfer Ports rely on the properly sized Slow Jet for the Transfer Fuel Mix, especially since there is no other adjustment available to control that mix. used the constant Adjusting a Harley Davidson CV carburetor can significantly impact your bike's performance, with up to 70% of carburetor-related issues stemming from improper adjustments. Drag Specialties offers a comprehensive Harley Pushrod Adjustment Chart for motorcycle enthusiasts. Carbs will have one or Apr 25, 2024 · This item includes specific choices of carburetor size and suggested jetting for Harley-Davidson 45, 45 stroker, UL & 74, and gives you something you can really use, along with many helpful hints, comments, observations, data, etc. Recommended Communities. com/ This video shows you how to adjust the valves on a Harley-Davidson Evolution motorcycle engine. Make sure that the stock Harley-Davidson choke cable is fully seated in the metal elbow at the carburetor end of the cable assembly (see Installation Instructions). So only 1/8 to 1/2 turn adjustments would dial the carb right in. rootintootin 49 Replies. Any suggestions would be greatly appreciated . It's got a Screamin' Eagle carb on it of about the same era. Instructions on how to fine tune the mixture on a Harley carburetor. 800-969-7501. Thus you can use them on Knuckleheads, Panheads, Shovelheads, Sportster →1987 and Evo Big Twins →1989. The bike will not idle without cracking the throttle, and with the bike running looking through the carb, fuel is gushing through the needle jet 1987 Electra Glide Classic FLT EVO Stock Carb Issue. Reassemble everything. Exploded view; 1) Slide diaphragms for the Harley CV carb slide are not sold separately, so the only fix is to replace the Harley vacuum slide. The cables are zip-tied to the frame under the tank, and sometimes the cables get pulled on a bit at the carb end. Got a "better" rebuild AC, exhaust, and carb re jet. There is a video on you tube entitled "Harley CV carb mod" that might help you out of a jam. The CV-style Harley carburetor has a small cylindrical turret that protrudes from the lower rear part of the spigot (behind the bowl) The access to this screw is the key to fine tuning and must be removed ; Tip: Fasten the Harley's Keihin CV (constant velocity) carburetor is based on the basic Amal slide carb design from the early post-World War I era. Install the nut, spring and plunger onto the cable. Harley-Performance. Fuel Float Bowl and Parts. The Harley Davidson CV (Constant Velocity) carburetor is a pivotal component in a motorcycle’s engine, ensuring that the correct mix of air and fuel is delivered for smooth operation. Count the number of turns between the two positions. denniskirk. Jun 16, 2010 · A little late with the answer but here goes . Evolution 80 Cam Specs and Instructions. Be careful to only gently tighten the plastic nut. I also have obviously heard good things about S&S. I've had no problem with mine so far. 2. 10:02NOW PLAYING How to tune your CV carburetor rebuild & float adjustment Tutorial ep18 Roma Custom Bike 116K views6 years ago Custom Cez Custom Cez explains the carburetor rebuild and adjustment on his CV Harley Davidson carburetor, even for sportster ones. Harley ‘s cable is stiff and can fail to fully seat in the elbow. Meanwhile, the idle screw regulates the amount of air and gas entering the bike while it is idling. Includes enricher, idle adjustment cables, air cleaner flange mount and air cleaner adapter ring. HDTIMELINE. Oct 2, 2010 · Also, the adjustment on when the accell pump comes 'on' is a factor. Then turn both Idle Mixture Screws 1/4 turn at a time, (in for leaner adjustment, out for richer adjustment). Uncover the idle-air adjustment needle head if not already done, and remove it. Jump to Latest Please If Anyone Of You Know How Many Turns Out Was The Original Idle Mixture Adjustment Screw? I Have Adjusted My Carb To Fit With Cycle Shack And Removed The Plug To Adjust Idle Mixture, Don't let the Harley heat monster ruin your riding. Unsuspecting Harley owners perform that modification damaging the vacuum slide. New posts Search forums. Beyond proper jetting, fine tuning a Harley CV carburetor is the key to improved performance. Set engine speed by turning idle adjustment screw clockwise to increase speed or counterclockwise to decrease speed. Jul 31, 2021 · How to Adjust the Idle on a Harley CV carburetor. 63 - 0. Mar 14, 2024 · It was cheaper than a new pipe which I couldn't afford at the time. For use on pre-1990 Evolution engine vehicles, the throttle cables will need to be changed to 1990 EVO: Carburetor, Intake Manifold & Exhaust. As described in the Harley Performance carburetor tuning article, adjustment of the air/idle mixture screw will yield far greater results than simply jetting alone. The first told me it was the jets and charged me $500 but that did not work, then I took it to the second and they rebuilt my carb and charged me $500 and that did not work. Common issues include erratic idling and poor throttle response. also you did not mention the For MANIFOLD REQUIREMENTS early EVO Big Twin (84-89) and EVO Sportster (86-87) ,OE cables can be used without any adaptors. JC 92FXRS. Last edited by a moderator: Sep 12, 2009. Complete and assembled with all components. I made a wedge of wood cut at that angle (resembles a doorstop) and set the carb on it and made the adjustment. You may have to repeat the adjustment a few times till you get the feel of the highest and steadiest setting on the screw, usually in the area of 2 1/2 turns open. I am running a 95 inch motor, Andrews 37G cams, Street port stock heads with 83cc chambers (9. 00. Moderator. Evolution 80; EZ-install Pushrod Instruction . Then back out 2 1/2 turns. If your bike is currently running good, do not change any of the jets! EVO: Carburetor, Intake Manifold & Exhaust - Sportsterpedia sportsterpedia. 2865 posts V-Twin Harley Davidson forum. Reduce Engine Surging Improve Be sure vacuum hose is properly installed at carburetor and at vacuum-operated electric switch (V. Maybe just run the carb vac. I actually did the throttle position marking as suggested in the Mikuni manual. Here's what it does: It runs great at higher RPMs. SSCYCLE. Just keep your Screamin Eagle air filter clean and make sure May 22, 2013 · I was curious if there are any special adjustments made by HD for moto's operating in Colorado due to the altitude (more air mixture, less fuel, etc?). Do I need to have my moto "tuned" for Florida and does this require a trip to a Harley dealership (perhaps the use of some diagnostic tool for tuning mixture via computer, etc?). It is also recommended the EVO Turn and fuel line from carburetor and remove from adjustment screw in . You'll need a long phillips #2 screwdriver to get at it as long as the aircleaner isn't in the way or you might have to remove the aircleaner cover for access . 80 EVO does NOT COME WITH CARB. Adjust for optimal performance. Shovel Head Edelbrock Quick Kits and Complete kits are designed to and Iron Sportster will require use of Edelbrock throttle work with the stock manifold that was OE on your engine. com since not only do they sell a complete kit, they also have the EZ-Just adjustable mixture screw and have several articles related to rejetting and tuning a CV carburetor on a Harley Davidson motorcycle. You need to plug the vacuum fitting on the top of the carb that goes to the petcock is all. I used a Qwiksilver II carb on an Evo back in 1995 when they first came out. Dealers with dyno facilities can assist with tuning. the pipes are open long pipes. Once the new throttle cables have been properly installed and the return checks are complete, you should finish the job by reinstalling any items that needed removal to gain access to the 4 days ago · What carb on my EVO? January 12, 2025, 04:41:09 PM What is the best carburetor? I know many people that run S&S carbs, but a friend of mine that works at the local Harley shop says that mikuni carburetors are the way to go. Harley Davidson FXR Super Super E Carburetor Assembly for Harley-Davidson® motorcycles. Mar 16, 2012 The mixture screw only really has an effect at idle although the adjustment of it will let you know if the slow jet is of sufficient size Harley Davidson Community Have a look here, you will find most all of your answers for C V Aug 13, 2008 · This time with an '85 FXRS (Lowrider Sport). Seasonal Adjustments. The VOES adjusts ignition timing from idle to WOT, you wanna keep that function. Only 11 left in stock - order soon.
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