yz400f not firing


1 reply to this topic
  • teddybteacher

Posted November 08, 2012 - 02:24 PM

#1

what makes a yz400f not fire with a new spark plug?

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  • niles

Posted November 08, 2012 - 10:28 PM

#2

Bad coil (could even just be rust behind bolts causing it to not ground),bad CDI,bad kill switch,bad stater,bad spark plug cap or wire,bad wiring harness,improperly gapped plug or faulty plug (even new they could be faulty from shipping damage).





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