Joined
·
532 Posts
The YR1 is a 350 and it's a good one. The TR2 Yamaha production racers used that motor. Good torque and power. Run the motor stock if you're new to racing. The AS1 is what the TA125 racers were based on. I have one that may turn into a racer...if I live long enough.
BTW the CT scan last week didn't come up with anything bad. Looks like JB will be in trouble this year.
And I just ordered some 2 smoke software so I won't be guessing about porting and pipes anymore.
FrankC
