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Old 07-12-2018, 07:45 AM   #7
Tony, NY
Senior Member
 
Join Date: May 2010
Location: Capital of Corruption , NY
Posts: 753
Default Re: 39 Merc hesitating under load...driving me crazy

I link misfire under load to secondary ignition system. Do you have a misfire or hesitation? Do you have new spark plug wires?
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