looking for help tuning power valves on a yamaha 701 sj with a dasa flat top 85mm bore and a 5mil crank and b pipe. is there different springs to get or can i cut them? all the parts i have now are what i got from dasa. it pulls hard and runs strong. just looking for some info on how to tune...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.