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Old 06-29-2013, 02:32 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Smile Re: Biturbo Exhaust/Chain Adjuster upgrades

Originally Posted by Scootmeister View Post
Something I learned from this project is the oil from premix will find the smallest escape route and make a mess. So I guess one of the keys to fabricating an exhaust for a 2 stroke is to eliminate all exit points in the system except the obvious one. My first silencer was connected to the Biturbo Expansion Chamber with pop rivets. The B & S muffler that was inserted into the silencer housing was also connected using pop rivets. Unfortunately, pop rivets do not provide a tight seal and oil eventually leaked onto the exhaust. I corrected the problem by using a one-piece silencer and connected it using a hose clamp instead of pop rivets. So far, so good, and it sound much better!
That looks real nice......
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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