now then ziggy, ill be at the halifax national, brooklands and aldershot are abit far away, will be running the os18 in my 835 for now, hopefully be testing the engine out at halifax at club meet at end of month.

are you running the motor on 16% or 25%?

the novarossi pipes they recommend same as the .12 motors, i have a few old pipes mite give them a try 1st