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Old 11-15-2012, 11:51 PM
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fatdaddy fatdaddy is offline
Motorized Bicycle Elite Member
Join Date: May 2011
Location: San Jose, Ca.
Posts: 1,518
Default Re: what did you do to your motor bike today?

Originally Posted by Wickedest1 View Post
yea and screw the pisses the neighbors off...right up my alley...part of the reason i chopped my exhaust to just a short curved pipe with no baffles
I run a pretty short pipe too Wicked,(yeah, it's loud.) but ya gotta leave a little something in for some back pressure. I cut a used stock pipe all the way just before the honeycomb inner baffle. Used because the honeycomb always clogs a little producing the back pressure you need. Otherwise there's nothing to prevent fuel from simply being pushed straight through, leaving less in the cylinder to burn. So what yer doin is using(wasting) more fuel for less POP. 2 strokes need just a little back pressure. You can see in the pic how short mine is.
Sorry, To be more precise, NON REED VALVE 2 strokes need back pressure from the exhaust.
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Last edited by fatdaddy; 11-16-2012 at 12:01 AM. Reason: non reed valve engines
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