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1991 zxr 400 idling issues

Posted: Thu May 01, 2014 1:53 pm
by tgthomas
when my bike cold it will run at 1200 rpm but when it gets hot and the throttle is returned the bike idles at 3000rpm and when i turn the idle screw the bike dies and floods the engine and when idling that high when you engage the clutch the bike does not return to 1200 rpm i have cleaned the carbs and replaced the coils and leads and have put new carb clips on. have no idea why it is still doing this please help :smt013

Re: 1991 zxr 400 idling issues

Posted: Thu May 01, 2014 7:19 pm
by RedexRobB
Crickey, had to take a breath. Full stop wouldn't go a miss lol

If the revs hang then your usually looking at leaky carb rubbers.