Why does my bike die when I take the choke off?
When the engine is cold, it needs slightly more fuel in the fuel/air mixture for it to start, which is what the choke does. The choke increases the amount of fuel in the mixture, creating a richer mixture. So when the choke is turned off, the engine gets too little fuel and too much air for it to run and it stalls.
Why does my motorcycle only run with the choke on?
It means your motorcycle is not getting enough fuel, and this can be caused by dirty or clogged pilot jets, clogged fuel line, clogged fuel filter, dirty petcock, loss of vacuum in the carburetors, among other carburetor issues. Nine times out of ten the cause is clogged pilot jets.
When to use a choke on a carburetor?
Utilizing a choke allows you to enrich the air fuel mixture by reducing air flow. This will increase the vaporized fuel in the engine when the engine is trying to start. After the engine warms up, the choke can be pushed close. This will allow the air fuel mixture to be governed by the carburetor.
Is there a choke on a fuel injected bike?
The answer is no, fuel injected bikes do not have a mechanical choke. A fuel injected bike does not have a carburetor. The air and fuel mixtures are determined by the Engine Control Unit (ECU). If the engine wants a rich fuel mixture for starting, it can automatically increase the amount of fuel injected into the cylinders.
Do you need to tune the fuel mixture on a motorcycle?
Once you have the motorcycle up and running, you will need to tune the idle mixture. Every carburetor is equipped with an AIR or FUEL screw to tune the air fuel mixture at idle.
It means your motorcycle is not getting enough fuel, and this can be caused by dirty or clogged pilot jets, clogged fuel line, clogged fuel filter, dirty petcock, loss of vacuum in the carburetors, among other carburetor issues. Nine times out of ten the cause is clogged pilot jets.
Why does my bike die when I give it throttle?
Check for an air leak allowing too much oxygen into the combustion chamber. Check the condition of the spark plugs to see if the fuel mixture is too rich or too lean. Nope, not yet. Still working on it. It’s doing BETTER, but it’s still doing it sometimes. I’m thinking mixture. If you go half choke on yours does it rev up better?
Why does my motorcycle die at half open?
At half open, if I throttled, it’d stutter and die. If I pushed the choke straight in, it may or may not die. Got hot very, very fast – not a “normal” warm up.
Once you have the motorcycle up and running, you will need to tune the idle mixture. Every carburetor is equipped with an AIR or FUEL screw to tune the air fuel mixture at idle.