Bike just started doing this when I rev the motor takes idle a while to come down video please take a look
http://youtu.be/HakxGe7IPHA
http://youtu.be/HakxGe7IPHA
Idle problems (Need Help) thanks
- Thread starter NineFive_163
- Start date
A couple of questions:
How many miles on the engine?
Have you watched the carburetor slide, or barrel, when you twist and release the throttle? Does it snap back down to the idle position or move down slowly coinciding with the engine rpm? Check your throttle cable for free movement. No kinks or binds in the cable. Lubricating the cable as well as the thimble in the twist grip where the cable wraps is always a good idea too.
A brand new engine will not have the compression that one that is broken in has and won't be as 'snappy'. You might have a very small air (vacuum) leak in the intake/induction system but I suspect a throttle cable/carb slide issue.
Tom
How many miles on the engine?
Have you watched the carburetor slide, or barrel, when you twist and release the throttle? Does it snap back down to the idle position or move down slowly coinciding with the engine rpm? Check your throttle cable for free movement. No kinks or binds in the cable. Lubricating the cable as well as the thimble in the twist grip where the cable wraps is always a good idea too.
A brand new engine will not have the compression that one that is broken in has and won't be as 'snappy'. You might have a very small air (vacuum) leak in the intake/induction system but I suspect a throttle cable/carb slide issue.
Tom
I'd say under 100 miles. The throttle does snap back freely. Carb slide? If you the choke it stays open where would the vaccume leak come from if it's a simple carb
The slide or barrel is the moving part in the carburetor. It is what the cable lifts and lowers.
The most common places for leaks are the carb to the intake manifold and the manifold gasket at the cylinder. The kit gaskets aren't the highest quality and the carb needs to be sealed to the manifold with a gasoline compatible sealant.
One problem, especially with the steel intake manifolds is the flange where it attaches to the cylinder is often warped from the welding process and needs to be filed, sanded or ground flat for a good gasket sealing surface. Also if the manifold is chrome it needs to be roughed up with sandpaper prior to sealing the carb to it so you have a good 'bite' for the sealant.
Tom
The most common places for leaks are the carb to the intake manifold and the manifold gasket at the cylinder. The kit gaskets aren't the highest quality and the carb needs to be sealed to the manifold with a gasoline compatible sealant.
One problem, especially with the steel intake manifolds is the flange where it attaches to the cylinder is often warped from the welding process and needs to be filed, sanded or ground flat for a good gasket sealing surface. Also if the manifold is chrome it needs to be roughed up with sandpaper prior to sealing the carb to it so you have a good 'bite' for the sealant.
Tom
