Hi, I have a Scorpa TYS 125 which I am really pleased with as my local club run the aircooled mono class. The bike has had the carb and tailpipe mod, I have also dropped the gearing by one tooth on f sprocket. As regards to the flywheel mod, is it worth it and where does the metal need removing from? Also has anybody done any thing else worth mentioning. Thanks....

Birketts 4stroke set-up

hope this helps

Thanks, I have seen that, it lacks info on the flywheel mod though.

Drop the 143cc kit on it, for a major difference.

Edited June 23, 200620 yr by DGShannon

Anyone know the Mikuni part # or jet type codes for the 102.5 mainjet, 17.5 pilot jet ?

Don, Mike from the Tryals shop (US Scorpa importer) will be able to sell you these parts state side.