What do you remove from a Harley CV carburetor?
Remove the Harley carb pilot jet. Remove the mixture screw, spring, washer, and o-ring. Spray a small amount of mild carburetor or fuel injection cleaner into the pilot jet passage and mixture screw passage.
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.
What kind of CARB does a Harley Davidson have?
Stock CV carb and Harley ignition, open air filter and 2 into 1 pipe with HP power baffle. I’ve only had it running for about 700 miles now, still working out the bugs. Anyway, I got it on the road and ended up rejetting to a 45 and a 180 main jet.
What should the throttle be on a Harley Davidson?
Increase the rpm to around 1,200rpm and lock the throttle there. Adjust the idle-air mixture needle until you get maximum rpm, then back off about 1/4 turn. If adjusting the needle out makes no difference, the slow jet is too large. If you can adjust the needle all the way in to the seat with no difference, the slow jet is too small.
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.
What makes the carburetor pop on a Harley Davidson?
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 ΒΌ throttle. 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.
Can a CV Keihin carburetor cause a Harley to stall?
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. This condition is not only annoying, but can cause the Harley to stall dangerously at stoplights, and can damage intake seals.
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.