confused bout rejetting

[greco400]

Im Really rich well i lowered it in the winter and it ran alright.. so today i decied to bring it back up b/c it was fouling my plug and running like crap, i brought it up. but sometimes when i puch it it cuts out, and it shuts off just idleing

Im confused what i should do I just hate it backfireing and not running good ( i just got it rebuilt and im trying to get the most power out of it with out leaning it all way out

thanks!

[jonc623]

i think you went wrong way you should go up in cold and down when hot at least thats what my quad takes more gas in cold and less in hot

[greco400]

SO lowering the needle richen's it up or leans it out i might of said it wrong. I will run a plug test 2marro and see where its missing it feels like half trottle

[ryanh250ex]

needle jet...the e-clip:

bring it down a notch, you make it richer.

bring it up a notch, you lean it out. it's that simple.

if it's cutting out at mid-throttle, the e-clip (or depending on what you changed, the needle jet itself) is the issue.

we can help you a bit more if you tell us what exactly you changed.

[HondaR]

screw out for rich in for lean

[JOEX]

Originally posted by greco400
SO lowering the needle richen's it up or leans it out i might of said it wrong. I will run a plug test 2marro and see where its missing it feels like half trottle
Lowering the needle, which is done by raising the e-clip, will lean out the mixture from 1/4 to 3/4 throttle position.

[greco400]

Ok thats what i thought, after school today im going to run it and see what my plug looks like i think i got to go more more notch up to lean it out, Its getting to much fuel at 3/4 throttle, so i raised it up one and it helped a lot. alright, thank you! i will get back to you!