oliver85 Posted March 23, 2008 Share Posted March 23, 2008 I have a 2004 Yamaha yz85. It runs fine most of the time but some times at high revs it will suddenly cut out. I don’t think it’s a fuel problem because if I dip the clutch I can hear the un-burnt fuel back fire in the exhaust. Then when the engine has stopped I let the clutch out again and it will fire straight back up or if I’m stopped kick straight up I hope that makes sense Does any one on what might be wrong with my bike? Link to comment Share on other sites More sharing options...
jimmythehat Posted March 25, 2008 Share Posted March 25, 2008 hi, next time it cuts out wiz the plug out , if its white coloured and dry then you got no fuel, if wet then you have no spark pr no compression, Link to comment Share on other sites More sharing options...
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