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Plugs

US Marine,

One thought maybe only one cylinder is fireing. Might take a look at plugs.

Did it just start doing this or is the first thing after being stored all winter. Lots of people having trouble ofter winter storage. If it runs you might try Sea Foam carburetor cleaner. Half a can to a tank of new gas.

Dave
 

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If it started all of a sudden, check the valve timing. It sounds like possibly that the valve timing could have slipped. I had this happen at around 30k on my 06 1100. The factory did not tighten the cam timing bolts correctly. Just a thought.
 
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