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Title: engine wont start Post by: kfx400rob on April 01, 2007, 04:03:45 PM my rotax 503 snowmobile engine wont start and i don't know why. its a twin 2 stroke. the engine is in a golf cart. we ran it for a little while and it died when we let of the gas, i thought it was just because it only idled in neutral because the idle screw was set too low. when i tried to start it again it sputtered a little and wouldn't work. it doesent sound like its igniting, it gets weak spark, but it should be enough to run. it was running fine all day yesterday. after a few Minuit's of trying to start it it always floods even when I'm not on the gas. the plugs are old but would that be enough to make it not run?
Title: Re: engine wont start Post by: 450rcrazy on April 01, 2007, 06:33:30 PM once you flood a 2 stroke normally the plugs are junk.
Title: Re: engine wont start Post by: TRX450R_Racer on April 01, 2007, 07:01:08 PM I don't know anything about snowmobiles but, since it's a 2 stroke I would think it would have reeds. I would pull off the reed cage and check to see if one of the reeds didn't break off. If you have spark, fuel and compression that would be the only thing I can think of. Like stated above get a new plug too.
Title: Re: engine wont start Post by: Chevy1500z71 on April 01, 2007, 09:10:10 PM yea im going to get new plugs, i was just thinking it couldnt be that simple.
and no it actualy doesnt have reeds. Title: Re: engine wont start Post by: Chevy1500z71 on April 02, 2007, 08:51:44 PM got new plugs and it runs like a champ, smoked a rhino 450 on it today ;)
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