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Old 03-29-2015, 10:35 PM
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Davezilla Davezilla is offline
Motorized Bicycle Elite Member
Join Date: Mar 2014
Location: San Antonio Texas
Posts: 2,710
Default Re: what did you do to your motorized bicycle today?

I agree... drilling holes where there needs to be open space will kill performance as well as ruin a piston... what you're describing works with reed valves but not piston port engines and these engines don't come with reeds.... be sure you know what type of engine the guy has before recommending something that can mess up their engine or parts...
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