How do you adjust a CV carb float?
The float level on a Harley CV carburetor is adjusted by gently bending the metal tab that extends from the float and presses on the float needle plunger.
Where is the float needle on a carb?
It is most typically found in the carburettor of an internal combustion engine, where it automatically meters the fuel supply to the engine. However, this arrangement is found in many automatic liquid systems, for example the cistern of most toilets could be said to be a type of float chamber.
How do you set the float on a Harley CV carburetor?
When does the float needle stop the carburetor?
The fuel valve controls fuel when the bike is running or when the lever is in the off position. The carburetor float needle stops excess fuel at the float bowl.
How does the needle valve on a carburetor work?
This opens the needle valve allowing more fuel to enter the chamber. When the float again rises with the fuel level, the needle valve will close off the fuel supply. With a spring-loaded clip at one end and a tapered rubber tip at the other, the needle valve works in unison with the float.
How is the float height of a carburetor controlled?
The amount of fuel that flows is dependent on the position and size of the needle valve (explained below), the size of the main jet, and the height level of the fuel in the float chamber. The fuel height in the float chamber is controlled by the floats.
The float level on a Harley CV carburetor is adjusted by gently bending the metal tab that extends from the float and presses on the float needle plunger.
What kind of needle does a CV carburetor use?
A direct replacement for the factory discontinued Harley N65C needle. The classic N65C needle was originally fitted to the first CV carburetor on 1988 Harley-Davidson Sportsters that lacked an accelerator pump, therefore requiring a needle with a richer profile just off idle to overcome the lean stumble.
Which is the correct float setting for a carburetor?
While measuring the float position (below) is the most accurate method, it is also possible to “eye-ball” the setting by making sure the line on the side of the float is exactly parallel to the bottom edge of the carburetor body when tilted as in diagram B.
When to replace the float needle on a Harley Davidson?
Should fuel continue to flow or flood the carburetor after adjustment, replacement of the float needle valve is required. Please refer to your factory service manual for instructions on removal and installation of your Harley carburetor.