Need lots of help!!!

[Rack Man]

Originally Posted by WorkinLonghorn

Doesn't matter to me what engine it is,first I would check the accelerator pump on the carb (the thing that shoots a little extra gas down the carb when you quickly open the throttle). You can do this by opening the throttle by hand while looking,and listening down the carb (engine OFF). You should hear,and maybe see a little squirt. If not then that would explain the stumble.If the carb was just re-done it should be working fine though.
Then I would listen for any hissing at idle which would suggest a vacuum leak somewhere,either one of the little rubber hoses or connections,or somewhere else.
Then I would check to see if there is a real good spark at the plugs by removing a plug and carefully holding the base against a ground (engine block etc) and cranking engine over. Spark should be crisp + blue. If not then start looking at your points,condeser,coil,cap rotor etc.

X2 on the accelerator pump...this is culprit for that problem most of the time!