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Old 01-13-2010, 11:29 PM
Mike Hunt Mike Hunt is offline
Motorized Bicycle Elite Member
Join Date: Jun 2009
Location: Toronto, Ontario
Posts: 184
Default Re: losing power at high rpm

ok so before i had the b7hs plug, swapped to b5hs, doesnt die at full throttle any more, but fourstrokes badly (the needle clip is already set to the leanest setting). i tried holding the throttle wide open and after a few seconds it got going again, then later on during the same trip it started fourstroking again at full throttle and wouldnt pull through no matter how long i held it. the only thing thats different from stock right now is the plug and the saucer style airfilter from sick bike parts. and a new spark cable from sbp. does the spark gap make a difference, because i think i set mine too high..
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