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Old 05-01-2009, 10:56 PM
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Goat Herder Goat Herder is offline
Gutter Rider
Join Date: Apr 2008
Location: N.M.
Posts: 6,251
Default Re: exahust problems

The 2 stroke has no valves it breaths in two directions. Taking the muffler off will make it snort up un oiled air. You need an expansion pipe to prevent this problem. The term is called scavanging. With a tuned pipe it is the most effeciant it will snort back in unburnt exhaust that has oil in it. Making more power to boot. The stock mufflers are lacking a little for best performance... Hope this helps? This might shed some light
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