Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Re: Engine Missing under load
Does it go away at higher RPM, or can it not reach higher RPM?
Missing under load at low RPM is usually secondary ignition. Being erratic, it's probably before the cap/rotor/plug wires/plugs. Check the coil and coil wire. Less likely would be the module.
It could also be a plugged or restricted passage in the carb. Was the engine apart long enough to have caused the gas in the bowl to go gummy?
Low RPM generally rules out fuel pump and filter, and air intake restrictions.