400 Penton Exhaust Modifications

[Daniel P. McEntee]

Hi Clark;
    I have a SuperTrapp waiting in the wings, but have a concern that the size of the inlet may not be large enough. It was used on a Yamaha TY-250 trials bike, and I need to see how far I can cut the end back and not get into the heart of the silencer/spark arrestor. My main interest is to rebuild the bike like it was found. If I can't quite get the original silencer to work at all, I can always make a change.
   Thanks for the input.
   Happy Independence Day Everyone!
   Dan McEntee