mcferreira100 Posted January 27, 2015 Share Posted January 27, 2015 What you guys make of this plug..looking bit black? Bike has a serious midrange miss and backfiring when rolling off throttle.(sorry for crap pic) Link to comment Share on other sites More sharing options...
slice Posted January 27, 2015 Share Posted January 27, 2015 Does look a bit sooty Mc, to rich I would say or perhaps not enough air in the mix tho the spark terminals look ok as in light brown rather than black. Link to comment Share on other sites More sharing options...
KevtheRev Posted January 28, 2015 Share Posted January 28, 2015 Does that model of bike have a mechanical or electronic advance/ retard mechanism ? Link to comment Share on other sites More sharing options...
mcferreira100 Posted January 28, 2015 Author Share Posted January 28, 2015 Electronic ignition. Link to comment Share on other sites More sharing options...
KevtheRev Posted January 28, 2015 Share Posted January 28, 2015 Ah , I thought maybe it wasn't advancing properly . Link to comment Share on other sites More sharing options...
Moderator drewpy Posted February 1, 2015 Moderator Share Posted February 1, 2015 hey Mc, sent you a PM mate Link to comment Share on other sites More sharing options...
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