Which is better a Harley Keihin or CV carburetor?
A Harley CV carburetor by far outperforms it’s butterfly style predecessors, namely the Keihin, Zenith, and Bendix. This brings us to the subject of upgrading these older Harley “Soup Cans” to the newer CV style carb.
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.
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.
When did Harley Davidson start using CV carburetor?
Harley Davidson started equipping models with the CV carburetor in 1989 and has utilized the same carb ever since. A CV carburetor (Constant Velocity) incorporates a vacuum operated slide that varies the venturi size within the carburetor, thus maintaining a constant velocity.
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.
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.
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.
How to adjust CV carburetor mixture on Harley?
If adjusting the existing stock mixture screw instead of installing an EZ-Just, use a small flat head screwdriver and turn the screw clockwise until it GENTLY seats. DO NOT OVER TIGHTEN AS THIS WILL DAMAGE THE NEEDLE SCREW TIP. Count how many turns it takes to reach the closed seated position.