davym Posted July 13, 2009 Share Posted July 13, 2009 hi i bought a yamaha jog rr off a friend its had a new mot i used it for 3days it was working fine but then it just wudnt start its tryin to but it wont av tried a new spark plug and battrey but still the same any help please thanks Link to comment Share on other sites More sharing options...
wild foamy Posted July 13, 2009 Share Posted July 13, 2009 is there fuel getting into the engine (check the end of the spark plug and make sure it is wet with fuel) and also check for a spark Link to comment Share on other sites More sharing options...
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