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Title: fouling plugs on golf cart Post by: Chevy1500z71 on April 04, 2007, 09:15:23 AM my rotax 503 was fouling plugs in 1 cylender after only a couple rides on a 290 main jet, so i switched to a 280 and the plugs last longer but still eventualy foul. the moter was jeted for cold wethether and higher elevations im asuming since its out of a snowmobile. but what im wondering is if the moter is jeted richer for cold wether, i dont want to go to leen...
Title: Re: fouling plugs on golf cart Post by: TRX450R_Racer on April 04, 2007, 09:33:52 AM It should be jetted richer for colder weather.
Title: Re: fouling plugs on golf cart Post by: Chevy1500z71 on April 04, 2007, 09:55:10 AM It should be jetted richer for colder weather. thanks, thats what i was thinking, i was afraid that i was going to end up going to leen whene something else may be my problem. going to try a 270 or a 275 and see what hapens. it seems the leener i go the longer the plugs last... i hjust dont wana go to leen Title: Re: fouling plugs on golf cart Post by: TRX450R_Racer on April 04, 2007, 10:25:04 AM Try dropping the needle down one notch.
Title: Re: fouling plugs on golf cart Post by: Chuck_Norris on April 04, 2007, 01:04:15 PM Try dropping the needle down one notch. Good call, check and see what pilot jet is there also. does it foul it out at idle, part throttle at W.O.T pilot Jet and mixxer screw play the role at idle..Needle is your mid range and YOUR Main jet is for W.O.T Title: Re: fouling plugs on golf cart Post by: Chevy1500z71 on April 04, 2007, 11:22:20 PM Try dropping the needle down one notch. its down all the way Try dropping the needle down one notch. Good call, check and see what pilot jet is there also. does it foul it out at idle, part throttle at W.O.T pilot Jet and mixxer screw play the role at idle..Needle is your mid range and YOUR Main jet is for W.O.T i have no idea where its fouling plugs wether its idle or full, but it runs about 6500 90% of the time, wich is prety far from wide open |