[Dave K]

  Has Any one used an offset key on the flywheel to advance the timing ?
There doing this on Polaris , Skidoo & artic cats To gain more low end & Acceleration. Im  only talking max of  2 deg which = 1 to 2 hp per each deg.  The only thing you have to run premium
fuel & A Fuel  Tuner Which is what i run any way.  Every thing i read on these engines say they benefit from up to 2 deg.s & no more. Any more will burn down the piston.

[NMKawierider]

  Has Any one used an offset key on the flywheel to advance the timing ?
There doing this on Polaris , Skidoo & artic cats To gain more low end & Acceleration. Im  only talking max of  2 deg which = 1 to 2 hp per each deg.  The only thing you have to run premium
fuel & A Fuel  Tuner Which is what i run any way.  Every thing i read on these engines say they benefit from up to 2 deg.s & no more. Any more will burn down the piston.

I think I read on one of the FB pages of some doing that...so yes. Not me though.