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 ¼ 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.
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 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.
When to start a Harley Davidson CV carburetor?
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. Always start with a fresh set of spark plugs when tuning.
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. 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.
Why does my muffler pop on my Harley?
Often people think their bike is not tuned properly after the addition of “aftermarket” mufflers because of the additional popping they hear. Stock mufflers provide a lot of volume for the rumbles and popping in the exhaust to be toned down by resonating in the larger muffler canister.
How can I reduce the popping on my Harley?
You can reduce/ remove the popping by adding fuel percentage to the tune. If you have a Harley Race tuner then any dealer can do this be adding 5%-10% extra fuel. This will decrease your fuel range and also cause your spark plugs to need to be replaced more frequently.
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 does the popping sound on a Harley Davidson mean?
The popping sound you hear from a bike is called backfiring, and a lot of Harley Davidsons exhibit this behavior. Backfiring can seemingly begin out of nowhere on a Harley and make the owner think twice about taking the bike for a ride. In this article, we’ll be delving deeper into the backfiring of a Harley Davidson. Let’s get into it!
Why does my Harley Davidson have carb cough?
Don’t know, but probably not. Checked the enricher early on, along with carb seating. Even replugged the air/gas mix screw access hole (chewing gum) because the dealer told me that it could be sucking a little wind through there. But it didn’t come together until I changed the jet.
Why does my bike pop when I close the throttle?
So, the popping you are hearing is not back-firing. It is a popping resonating sound generated by a lean condition on deceleration. When you suddenly close the throttle, the incoming air is choked off and the closed throttle also causes the bike to return to idle on the very lean idle circuit.
Why does my Harley Davidson engine choke out?
I have a sputtering problem once I get on the road. I have replaced the spark plugs, replaced the fuel and the bike starts right up with the choke out, then after a few I can push the chock in and it will idle.