Where Are The Hot 900 Engine Builds?

[MonsterHPD]

Turned down stock M900 flywheel:



On a kitchen scale it weighted in at 930 g, on a fishermans scale 0.95 kg, maybe symptomatic for that sport .... we've had a flywheel like this one on out SSie900 rain day track bike with no problem.
The steel in the flywheel is quite hard, and I would not do it if I did not have the sintered-steel machineing tips, don't know what they're called in english.

In about 2009 I started a project for a St2-based track day bike, but due to family and work obligations and some other things that turned up, I never got beyond the engine:



Kämna 45/39 heads, Pistal hicomp pistons, Autoverdi rods, balanced and lightened crank, lightest Kämna alu flywheel, new crankcases (with piston cooling jets), close-ratio gearbox from a Monster900 / 2002. The motor has been standing in my garage since 20012 or so, and in the meantime everybody running 2V bikes have turned up with 1100 motors.Powerwise, the 1100's more or less take off where this engine might end, I'd be happy with 98-100 horses in this one.

The motor in the rain bike now has something like 80k km on it, has started to sound very rough, so time permitting I'll put this motor in it, just to see how it works. We'll see ...



For track days, I've given in, an now have a 749R with a HYM1100 motor in it, Stock, so far,, and otherwise work in progress ...

[koko64]

Very cool.

[Nibor]

Schweeeet!