I think i need a new engine

[Russ2251]

Just my signature and does not reflect my sexuality.

 

[jr dragster T]

I know, I was just Yankin' ya chain.

 

[Russ2251]

I do, however, like chains.

 

[jr dragster T]

I bet.

 

[SpyGuy]

thats how my carb is now. I did some mods like remove gov,rejet,pipe, and filter. When i have my choke off she runs like a normal 390, but when the choke is on she is real fast, and can smoke my buddys 390(same manco cart). with the choke on she idles high, and creeps forward which i dont like. Is there a way to solve that/
thanks

Check your spark plug. If it is white-ish/gray, that means you're running too lean (not enough fuel). Pitch black/dark brown = too rich (too much fuel). Caramel/golden brown = just about right.

Idle sounds a shade high, so trying adjusting the idle screw on the carb, You may have an air leak somewhere, which would also cause a high idle.

Russ: How does that saying go? "Sticks and stones may break your bones, but whips and chains excite you ........?"

 

[polcat1p]

plug is golden brown. I also went up a few sizes on the jet. I will try the idle screw, as i dont think running it with the choke on is the right thing to do.