RE: tuning a ypvs compared to the non power valve rd

Yamaha RD 350 discussion forum:


RE: tuning a ypvs compared to the non power valve rd

RE: tuning a ypvs compared to the non power valve rd 
Tonimeistro said 2009-09-08 23:56 
 
Tuning of this model is the same as non YPVS, The key benefit is that if radical top end power is your aim, then you can run with a higher exhaust port whilst still maintaining tractability ( when the valve is closed), at revs below 7500 rpm ( approx). 
 
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