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Mercury 6hp ME8M MISFIRE ISSUES

Aussie Chris

New member
Hi all
Im having trouble sorting my 2007 6hp ME8M.
It starts fine but runs on one cylinder for a while then runs on both cylinders.
As I throttle up it has an obvious missfire all through the throttle range but if I back off it gradually comes good. It pops a little occasionally at full throttle. It does exactly the same whether it is cold or warmed up.
It has had carby clean, plug change, checked tank for water or debris and inline filter change.
I must add I can shut it down for 1 minute or 20 minutes it does it all over again
Any help is greatly appreciated
Chris
 
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