To let you know - John John (JJ) took
Western Canadian Championship on 85 Yamaha with Somender's 5 groove
set-up. Shaving head 10 thou out-performed 3 groove. Jet sizing way
down - performance way up. 4 stroke Honda was hole shotting 90% of
every race. Thank you very much for helping us out. Happy New Year
& best wishes to you and yours. kp / whitecourt