lots of stabilizer in the non-ethanol gas, good connections at the battery and coil, plugs are clean and gapped at .040. Air filter is clean. Sputters when I give it some throttle. Going to go after the Super E's accelerator pump tomorrow. Any other suggestions? I put 200 miles on it after a pro rebuilt the carb and it ran great.

 

Manifold seals?

 

I'm going to go with too much stabilizer in the gas.
Drain the old gas and put in fresh and try again.

 

Don't need "lots" of stabilizer in the non-ethanol gas just like you shouldn't over oil in two cycle engines, as a matter of fact unless the gasoline is six years old you don't need any stabilizer in it.

Accelerator pump is good starting point followed by timing. Sames strange that the accelerator pump won't be working if "professional" rebuilt the carburetor.

I'd check timing, vacuum leaks, and maybe set the RN12YC's to .038, then wiring to coil and primary wires from coil to spark plugs.

Don't know anything about the "Super E's" but someone will be along shortly that does.

 

change fuel first. If it still doesn't accelerate right change to a smaller main jet and see if that gets you any better. Sluggish acceleration with a super e generally means too rich

 

Plugged intermediate jet.

 

Yeah, if it ran right before and it doesn't run right now, I think you plugged up a jet. And what exactly do you mean by "won't accelerate"? A non-functional accelerator pump will just give you a bit of a stumble if you crank it, then it will take off normally.

I would drop the bowl and pull the 2 jets, inspect, blow through them.

 

Whoever "professionally" rebuilt the carb prolly left the little o-ring out....

 

Which one?
I can think of 3 right off the top of my head.

 

Seafoam!!!!!