When to replace the carburetor on a Harley Davidson?
Harley carburetor jetting should only be performed after completing the fine tuning procedure described under Performance Tuning and your Harley is still running too lean. A good rule of thumb is to replace the Pilot Jet first and only replace the Main Jet once the engine’s idle and midrange are satisfactorily tuned.
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.
When to adjust the mixture on a Harley Davidson CV?
Anytime you rejet or change exhaust or air cleaner intake it is suggested to adjust the mixture. The mixture screw or EZ-Just is the key to proper tuning. 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.
Do you need a jetting jet on a California Harley?
Avoid installing jets that are too rich as this will create a sluggish feeling at full throttle as well as contribute to plug fouling. Many Twin Cam models (except California) are already appropriately jetted with a main jet that will allow for a good starting point for tuning.
How big is a Sportster carburetor jet engine?
Sportster Carburetor Jet Sizes. KEIHIN CARBURETOR MAIN JET SIZES 1988 TO 2006. Year 1988 Engine 883 – Jet Size 170 (California 165) Year 1988 Engine 1200 – Jet Size 200 (California 180)
How big is a 1988 Harley Davidson carburetor?
KEIHIN CARBURETOR MAIN JET SIZES 1988 TO 2006 Year 1988 Engine 883 – Jet Size 170 (California 165) Year 1988 Engine 1200 – Jet Size 200 (California 180) Year 1989-1991 Engine 883 – Jet Size 175 (California 155) Year 1989-1991 Engine 1200 – Jet Size 175 (California 160) Year 1992-1994 Engine 883 – Jet Size 160
Harley carburetor jetting should only be performed after completing the fine tuning procedure described under Performance Tuning and your Harley is still running too lean. A good rule of thumb is to replace the Pilot Jet first and only replace the Main Jet once the engine’s idle and midrange are satisfactorily tuned.
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.
Where is the mixture screw on a Harley CV carburetor?
The CV style Harley carburetor has a small cylindrical tower protruding from the bottom rear of the spigot (behind the bowl). The tower is plugged with a soft metal insert covering the mixture screw. Gaining access to this screw is key to fine tuning and must be remove.
Why is my Harley CV carburetor stalling after tuning?
Hesitation or stalling can sometimes occur after tuning or rebuilding your Harley CV carburetor or if your Harley carb has not been maintained. The following are common issues sometimes encountered after tuning or rebuilding a Harley CV carburetor.
How do you reinstall a CV carburetor on a Harley?
Reinstall the carburetor back on your bike by reversing the steps taken during removal. Be sure to replace the fuel hose clamp, cables, and vacuum lines in the exact same location. Make certain the carb firmly seats back onto the manifold boot as a proper seal is critical. Test the throttle for binding and smooth operation.
What kind of carburetor does a Harley Davidson use?
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 to setup a Super E & G carb?
Watch the Super E & G Carb Basic Setup video 1 Verify carburetor is set to stock settings: 2 Idle mixture screw, 11/4 turns from lightly seated. 3 Idle speed screw, ½ turn clockwise from engagement point. 4 Accelerator adjustment screw, two turns counter-clockwise from seated. 5 Start bike, bring to operating temperature.