Question about 2003 HM Motard 250
The bike will like backfire/misfire and if i hold the throttle steady it will backfire like 2 times again....and it does this while riding at a steady pace too...it just started it didint do it a week ago. i didnt change anything except a new air filter..fuel screw is 2.5 turns out . the timing valve clearances and everything is in spec. is this a sympton of it being rich or lean? and it doesnt do it on chokeYes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...,,,
Posted on Nov 10, 2008
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Posted on Jan 02, 2017
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