Can a CV carburetor be cut with a pull handle?
Leave the choke cable hooked to the carburetor and disconnect the pull-handle end, taking the entire choke cable/carburetor assembly with the carburetor. It is faster to cut the fuel line hose off rather than trying to save it. If you take out the rear fuel tank bolts and loosen the front bolts, the fuel tank can be raised a few inches.
What kind of screwdriver to use for CV carburetor?
The carburetor is not as lean as the factory settings. DO NOT follow the owner’s manual directions for cold starting. A small, flat blade screwdriver about 3″ long should be used to adjust the idle mixture screw. Fumbling around with the wrong screwdriver usually results in burned knuckles.
How big is the Venturi on a Keihin CV carburetor?
Do not under-estimate the ability of the stock Keihin CV carburetor to produce good horsepower. The stock CV carburetor has a venturi diameter of 40mm (1.575 inch). Properly tuned, a CV carburetor is capable of supporting 80+ horse power in modified engines.
How do you drill a hole in a CV carb?
Using about a 1/16″ drill bit, turn the carburetor over and CAREFULLY drill a hole in the small plug just on the motor side of the float bowl. If the plug did not fall out when drilling, remove your drill bit and use the back side to pry it loose.
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.
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.
Can a CV carb be upgraded to a dual cable system?
Though many have used the CV carb using a single cable the chance of the throttle not closing due to the cable binding makes this a risk not worth taking. If requiring an upgrade to a dual cable system there are several sources to do so including the dealer or online.
Leave the choke cable hooked to the carburetor and disconnect the pull-handle end, taking the entire choke cable/carburetor assembly with the carburetor. It is faster to cut the fuel line hose off rather than trying to save it. If you take out the rear fuel tank bolts and loosen the front bolts, the fuel tank can be raised a few inches.