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Old 05-01-2017, 01:16 PM   #3
prismways   prismways is offline
 
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Join Date: Apr 2017
Location: Boston area
Posts: 171
thanks for chiming in, that is good to know. Do you know what RPM you're at when doing 45pmh? What do you think your max is?

Quote:
Originally Posted by Adjuster View Post
I don't have the bikes you're listing but I do have a Honda horizontal engine 125cc clone bike. It has a fully automatic transmission. It easily will do 45mph but gets loud and buzzy as you say. I think if it had a standard transmission with the right gearing it would go faster and be much smoother. I believe I am running the PZ19 carb with cone filter and I drilled out the exhaust to open it up some. Drilling out the exhaust made the biggest improvement in power/speed.
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