Re: Rough Idle

Posted by JWL On 2011/5/5 15:46:09

steve828, It would be a good idea to replace fuel pump flex hose now - new pump, new hose. Your rough idle and stalling may be caused by an improperly adjusted or flooding carburetor. You say you have tried adjusting the idle speed, have you tried to adjust the idle mixture? There are two brass, round headed screws that are the idle mixture jets at the front bottom of the carburetor. With the engine idling as close to the specified idle RPM as possible turn in one screw until the engine starts to run rough, then back out about one-half turn. Do this on the other jet and go back and forth until you get a good smooth idle. You may have adjust the idle speed adjustment during task. If you can screw in the idle mixture jets all the way (don't force them, just until you can feel them bottom) then the carburetor is flooding and is getting gas from the flooding to keep it idling even with the jets screwed closed. Others may have other suggestions to help you solve this problem.

(o{I}o)