jetting problems

[Shafer777]

ok i got a 05 w/stock carb bored to a 43mm, baldwin motor... so on and so on. i just got it rebuilt and i just stared it today for the first time, and i cant get it to idle right. im running a 185 main (not sure on needle setting but shouldnt be an issue for idling) and a 52 pilot (its turned all the way in since thats how it was when i got to lookin and cleaning in there). any help will be appriciated. i just need to get the idling set right so i can break it in correctly.

[Shafer777]

sympoms- either idles really high, or acts like its going to stall.

[muddzilla94]

maybe check the valves, that what might did when the valves were out of adj, it either idled really high or didnt idle at all. hope this helps

[Shafer777]

the thig is i just replaced those and the seats, all done by dasa. and when u rev it up it backfires when u let off. fuel mixture screw maybe? sorry but workin on carbs is like brain surgury to me.

[muddzilla94]

mess with the air fuel screw and see what that does, try to get it at 2 1/2 turns out. if it dont help you might have to drop a size on your pilot jet it might be to big

[DnB_racing]

after the carb was bored was it cleaned??

[quad71]

Popping on decell is lean and is ok mine does until the motor gets up to operating temp. i adjust fuel screw when motor is hot. fuel screw and pilot control idle. If popping is real bad after motor is hot and pilot is not cloged and fuel screw is more than 2 1/2 turns out. You may have air leak you said it idles high or low when at low idle spray starting fluid around carb if idle goes up you have air leak. another way to check is to rev up motor and chop throttle if motor takes along time to decell could be air leak if no air leak go to bigger pilot.

[Shafer777]

after i cleaned it, it was bored when i got it, and 3 days after i bought it the can chain broke, so i want through and redid everything.

and mudzilla ill try what you said, once i find what ur talkin about... this carb is new to me, but give me a FCR and i can rebuild the whole thing no prob.

[Shafer777]

never mind i got it, thanks for the help

[DnB_racing]

Originally posted by Shafer777
never mind i got it, thanks for the help tell us what you did?? this way if someone else has same issues they can follow the logic:)

[Trailie400]

I helped him out on facebook, he just turned his fuel screw out 1.5 times and adjusted the idle basically.