Forum: Engines & props
30 January 2009, 03:08
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Replies: 8
Views: 2,671
missfire on yamaha 140 v4
My 1990 yam 140 v4 seems to have a missfire..I have replaced the plugs,problem then seemed to get better BUT there is still a miss on piston 4.
I have switched the plugs and the ht cables but no...
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