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Old 08-04-2009, 10:31 AM
midatlanticcycle midatlanticcycle is offline
Motorized Bicycle Newbie
Join Date: Apr 2009
Location: leola, pa.
Posts: 16
Default Re: New build won't start

dave: a few items to check and i know this from exact same experience you had. if you have chinese 2-stroke, first off........DITCH the chinese sparkplug that came with it. they're junk. go with NGK B5HS or B6HS. the 5 is a tad hotter heat range. though you may have spark with plug out of motor and grounded, the compression knocks out the spark when it's installed in the head/motor. also remove the carb and intake manifold and reseal the manifold. they all leak air at this mating surface. basically, you just want to put good rtv sealant on both sides of gasket and reinstall manifold. use it sparingly. but i'm 99% sure it's the plug
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