What kind of carburetor does a Harley Davidson use?
Harley-Davidson Motor Co. used the constant velocity (CV) carburetor in the 1988 Sportsters, 1990 Big Twins (EVO and TC88) until 2006. Since then, all Harley-Davidson motorcycles make use of fuel injection. The CV carburetor may show signs of needing to be tuned.
Why does my CV carburetor on my Harley not work?
Since then, all Harley-Davidson motorcycles make use of fuel injection. The CV carburetor may show signs of needing to be tuned. These signs include a drastic decrease in fuel economy, black smoke appearing from the exhaust, sluggish acceleration, the engine spitting back through the carburetor, or hesitating upon acceleration.
Is the Fatboy a good bike for first timers?
The turbulence problem can be helped if you change out the solid wheel on the bike. The bike is heavier but not so much that it should be an issue unless you are very weak. You should ride the bike first to see if you will like it anyway and if you do maybe go to an empty parking lot to get use to the bike.
What causes a Harley Davidson carburetor to backfire?
A lean air or fuel mixture from the carburetor of a Harley Davidson results from drastic changes in the pressure. Backfiring during acceleration typically signifies air in the intake system of a Harley Davidson.
What causes CV carburetor on Harley to slow down?
If there is a vacuum leak the gas will be drawn into the leak and cause the engine RPM to slow or fluctuate. DO NOT PERFORM THIS NEAR AN OPEN FLAME. Again it should be emphasized, the #1 cause of carburetor related problems on a Harley or other V-Twin motorcycle is VACUUM LEAKS. The CV carb is dependent upon vacuum to function properly.
What’s the top speed of a Harley Davidson Fat Boy?
MCycle mentions that the bike has a top speed of 91.96 MPH and that it weighs 657 lbs. The Fat Boy is perhaps the most car-like of any Bike that we can think of. The suspension is so good you could probably ride directly over an open manhole and never notice.
Harley Davidson Pilot Jets for CV Carburetors are normally sold in sizes 40, 42, 45, 48, 50, and higher. A Stage 1 Carb Kit will normally offer you a proper range of jets for your particular model.
How does carburetor jetting work on a Harley?
Install the carburetor back onto the bike and perform the tuning procedure as described under Carburetor Tuning. As you can see, Harley carburetor jetting is a fairly simple procedure that under most conditions will yield greater performance when requiring a richer fuel mixture.
Harley Davidson Pilot Jets for CV Carburetors are normally sold in sizes 40, 42, 45, 48, 50, and higher. A Stage 1 Carb Kit will normally offer you a proper range of jets for your particular model.
What are the features of a Shorty E & G carburetor?
Additional features are an adjustable volume accelerator pump, high flow air cleaner and enrichment device with a variable position lever, and a tight, tucked-in profile for maximum leg room. Works great on high output engines and medium sized big-bore or stroked engines.
What kind of CARB is a Super Shorty?
Super “E” Shorty Carb Kits: The most popular aftermarket carb ever, the Shorty ‘E’ S&S is a 1-7/8” throat, butterfly type carb with a fully adjustable idle mixture screw, changeable mid-range and high-speed jets.
They are butterfly type carburetors with fully adjustable idle mixture and changeable mid range and high speed jets. Both carburetors also feature an adjustable accelerator pump and variable enrichment/fast idle device for improved throttle response, engine starting and warm ups.
What kind of carburetor does a super G have?
NOTE: Because S&S carburetors are significantly larger than OEM units, unmodified, small displacement engines such as 883 and ironhead Sportster models may experience sluggish low speed response when equipped with S&S carburetors. This can often be minimized with careful tuning. The Super G has a 21⁄16″ (52.3mm) bore and 13⁄4″ (44.5mm) venturi.
When to tune a Harley Davidson CV carburetor?
These tuning steps apply to all Harley CV carbs from 1989 to present that use the CV 40mm style Harley Davidson carburetor but also apply to the CVK40 found on other models. Always start with a fresh set of spark plugs when tuning. The carburetor will need to be removed from the manifold so refer to your factory shop manual for this procedure.
Can a stock carb be replaced with a s and s?
I have an S&S type E on my ’03 FLHT and love it. It is a carb that has been around for years and performs well. If you are running a stock motor I would stay with the stock carb. But if your motor is modified, which yours isn’t, you might want to upgrade to an S&S type carb.
This simple procedure is a great Harley tech tip that applies to all Harley carbs from 1989 to present that use the CV style Harley Davidson carburetor. Earlier models equipped with the older butterfly style carbs (pre-89 Evo’s, Shovelheads, Pans, and Ironheads) are excellent candidates…
Why does my Harley Davidson have no spark?
No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started.
How do you fix a carburetor on a Harley Davidson?
Secure the carb in either a vise or by other means that will allow the carburetor to remain steady. Drill a hole into the plug making sure not to “punch” through too fast. You don’t want to damaged the mixture screw just below the plug. Allow the drill to slowly cut into the plug rather than push.
Can a Harley Davidson CARB be pulled away from the manifold?
A simple “Top” and “Bottom” should suffice when tagging each cable. Now that you have enough slack in the cables you can pull the carburetor away from the manifold. A Harley carb is only held to the manifold with a slip fit rubber manifold boot.
No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started.
What was the problem with my Harley Davidson?
After about 15 mins she showed up and said her bike would not stay running. At each stop, it would stall but would always start after the fact. It died in the driveway. We tried to troubleshoot the problem but have been unsuccessful so far. Checked the fuel pump, getting gas, changed the plugs and checked the wires for leaks, no leaks.
Why does my Harley Davidson run weird after a charge?
The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since.
What causes a Harley Davidson to go rough idle?
Sluggish or lack of power. If the ECM believes the vacuum is high or under low load it will reduce the amount of fuel and retard spark timing. This would result in poor performance when the MAP sensor fails to notify the ECM of an increase in load. Rough Idle. Insufficient fuel injection (supply or pulse width) can produce a rough idle.
The year 1974 saw FL Touring models switching from a Bendix carburetor to a Keihin, while the Harley FX models continued using the Bendix carb. The FXE began out-selling the FX, then out-selling the FLH touring bike, becoming the most popular Harley Big-Twin. Harley Big-Twin models came equipped with Bendix carbs from 1971 through 1975.
When did the Harley Davidson FXEF Fat Bob come out?
The base, kickstart-only FX was discontinued in 1979. In that same year, the FXEF Fat Bob was introduced, offered with either cast or spoked wheels, and with either the 74 or 80ci motor. A 1979 Low Rider in metalflake silver with black trim was a sharp-looking bike. The Harley FXWG Wide Glide, based on the Low Rider, first appeared in 1980.
When did Harley Davidson change to Keihin carburetor?
The year 1974 saw FL Touring models switching from a Bendix carburetor to a Keihin, while the Harley FX models continued using the Bendix carb. The FXE began out-selling the FX, then out-selling the FLH touring bike, becoming the most popular Harley Big-Twin.
What was the first custom Harley Davidson motorcycle?
The 1972 model looked much cleaner, with a banana seat and Sportster-style rear fender, combined with “Fat-Bob” gas tanks and dash unit from the FL. Although not a big seller at the time, the Super Glide is considered to be the first factory custom motorcycle.
Harley Davidson motorcycles prior to 1989 used a standard butterfly carburetor and are excellent candidates for upgrading to the newer CV carburetor. The upgrade is quite straight forward and for the majority of models only requires a Flange Adapter be fitted between the carb and the manifold.
Is there a 1981 Harley Davidson Low Rider for sale?
1981 HD FXS, 80″ Shovelhead for sale. Wrapped pipes, Model A tailight, Vertical license plate, S&S Super E. Recently went to the shop to get serviced and push rod adjustment. Runs Great. 1981 Harley-Davidson Low Rider , 1981 FXS Low Rider.
Where can I buy a 1981 Harley Davidson?
1981 Harley-Davidson Low Rider , Recently purchased this 1981 Shovel Head! Hard times financially, need to sell ASAP! Has low mileage! Kept clean in shop! Call for further details 979
How much does it cost to change a CV carburetor on a Harley Davidson?
Pre-1989 Harley’s used a two bolt flanged manifold, whereas a CV carburetor simply slips onto a rubber boot and is held in place by the air cleaner’s backing plate. Total conversion shouldn’t cost more than 200 bucks… less if you can find a buddy with a spare CV carb in good condition.