Here's a couple pics of my setup, if I remember right that's a 22mm carburetor off ebay. It bogs and spits at certain rpm and throttle position combinations. After reading a few posts here and modulating the throttle more conservatively it has fixed most issues. I haven't ported anything yet but I've got this exhaust on the way.
http://slappytees.com/images/motobike/6_27_08_01.jpg
http://slappytees.com/images/motobike/6_27_08_02.jpg
http://slappytees.com/images/motobike/6_27_08_03.jpg
http://slappytees.com/images/motobike/6_27_08_04.jpg
http://slappytees.com/images/motobike/6_27_08_05.jpg
http://slappytees.com/images/motobike/6_27_08_06.jpg
How far downstream do you all think the expansion chamber should be, given my intake length and carb size? I'm 200lbs and guess I'd be shooting for an all around performer, not a high speed demon as this thing sounds like it's going to explode at top speed anyway.
http://slappytees.com/images/motobike/6_27_08_01.jpg
http://slappytees.com/images/motobike/6_27_08_02.jpg
http://slappytees.com/images/motobike/6_27_08_03.jpg
http://slappytees.com/images/motobike/6_27_08_04.jpg
http://slappytees.com/images/motobike/6_27_08_05.jpg
http://slappytees.com/images/motobike/6_27_08_06.jpg
How far downstream do you all think the expansion chamber should be, given my intake length and carb size? I'm 200lbs and guess I'd be shooting for an all around performer, not a high speed demon as this thing sounds like it's going to explode at top speed anyway.
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