Now got 84 bhp & 47ft/lbs torque, thanks to some NS250R MC11 primary gears.

I got bored over Xmas and came across a box in the garage, when I looked through it I found the clutch basket & primary gears and noticed they were around 25-30% narrower than the 400's, they're otherwise identical so fitted straight on and gave another 2 bhp & 1ft/lb's torque throughout the whole rev range. The engine also reaches peak power 0.2 of a second quicker so worth the swop !

I've also got hold of a Yamaha Banshee V Force 3 reed block which I've managed to fit into a modified NS barrel, has anybody here tried this type of reed block in any strokers as it would be a lot of money to shell out and time wasted if they don't work any better than standard type reeds. I've searched the web looking for a dyno graph of a before and after comparison (for the banshee/YPVS 350) but found nothing, not even on the manufacturers site ?

Cheers Ian