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Old 04-20-2009, 11:28 AM
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HoughMade HoughMade is offline
Motorized Bicycle Elite Member
Join Date: Apr 2008
Location: Valparaiso, IN
Posts: 624
Default Re: Please Help. Rear Engine Is Stumbling.

Another vote for fuel starvation. You have the classic signs.

I don't know where the blockage is, but I feel pretty confident that you have a fuel restriction. I had this exact issue on my bike and it required a thorough dissassembly and cleaning of the carb. I have also seen this exact behavior on numerous small engines (I used to work at an equipment rental, maintaining and repairing small engines) and it was pretty much always a lack of fuel.
29/10ths cubic inches of raw power.
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