Yamaha RD350 racebike for sale

quote:
UngaWunga is that a home built air filter setup or is it available.Cool bike by the way!

I found it ,never mind hey Unga did you get this under your tree for xmas.

http://www.motocarrera.com/JEFF_DELONG.jpg



Edited by - LiLBull on Dec 25 2005 9:03:50 PM

Click to expand...

Food for thought....why are stock airbox systems and setups like this perferred on two strokes over straight pod filters? Well the principle of a two stroke is based on exhaust reversion pulling in the fresh intake charge into the combustion chamber and holding it there. If you have pod filters the reversion will bounce against the back plate of pod (the round plate at the top of the filter) and then reverse the direction of reversion pushing some of the intake charge back out the exhaust. On a street bike the effect is negligible but on highly tuned drag bikes and snowmobiles the effect can cause a break down of the barrier layer and eventually a hole in the piston due to the lean condition. On high performance two strokes like the kawasaki triple pod filters often make the carbs harder to tune partly due to this condition. If you have to run pods the best to run ar the tapered since the top plate is the smallest and the filter dampens most of the reversion.



Edited by - Geeto67 on Dec 25 2005 10:48:46 PM