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Old 05-11-2016, 07:18 PM
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Tony01 Tony01 is offline
Motorized Bicycle Elite Member
Join Date: Nov 2012
Location: San Jose, CA
Posts: 613
Default Re: Enclosing Air Cooled Engine, 125cc and single track trailer

Those are a lot of different questions and you'd be better off using the search function. As far as enclosing an engine, you can do it but you need to make air ducts that sufficiently draw and accelerate the air to the head. Look up race car body scoops and vents, also airplane aerodynamics. All of that will apply.
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212cc 2-speed
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