hey, hey guys don't go to extremes, Ha, I'll try not to and thanks again for the powervalve figures, that will make me think a bit differently, as it's no trouble to leave them operating. But even with them fixed I don't think the stock port timing is going to be that explosive and I have always gone sideways with porting to increase torque, but hey that's why I put my self up here as a target, to get the facts.'
Dave, I have raced a few bikes, NX4 RS 125, Moriwaki MD80, VFR400, RGV/yamaha IT490, NSR/yamaha YZ85, to name a few, and currently run a 1981 Kawasaki KZ750 replica P5 superbike and a yamaha 125. I'm not as fast as I used to be but I love it, titanium collar bones and all. I'm no young bloke for sure. And my days of championships are well over, even club ones.
And as for the, RGV it's true, about 78 to be nearer the mark, he also helped me get close to 28 H.P out of a YZ85 road racer, and get almost 30 out of his honda CRF150 that he runs in a NX4 chassis. He also now has 2 NSR MC18's to play with.
This historic racing period 6 250 production bracket, we now have in this country is about to take off like wild fire, and I have already been admonished for running an NSR, considered over here as not as good as the RGV's when they were run at the time, and it was here in that same 250 production class that the Goberts, McCoys, Corsers, Baylises, Malladins, and Cragills came from so there a pretty good history as to what was good at the time, kit bikes excluded. And can I attach a photo file here?