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Old 08-08-2010, 12:58 PM
StrontiumEthics StrontiumEthics is offline
Motorized Bicycle Elite Member
Join Date: Aug 2008
Location: Brooklyn, NYC
Posts: 179
Default Re: My new engine is weaker than my other engine? Any opinions why?

Very interested that you bring that up! I used to do that to the motors before! Turning off the petcock and letting the gas run down. and there was a BIG difference in performance. This morning I lowered the e clip on the carb needle to the highest position. I think its about time that i started messing around with the jets. I actually checked the filter and carb for debre but no sign. The plug I have is an NGKBP7HS brand new. I am in the process of checking the color of the spark for the mix. but Since i highered the E clip in carb needle performance did indeed get better. I believe I will be trying a .68mm and a .66mm jet from SBP for further testing.
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