Noooo do not use a 3 jaw puller.That will for sure throw your shit out of wack and will lose magnification.Go to your local yamaha shop and buy the flywheel puller.It's 13 bucks.As far as shortened out,probably not.Like 2001Stroker said, check the gasket on the stator cover and all that.I even use a thin layer of gasket sealent to be sure i don't get water in my cover.you're correct on the clutch cover side,oil filled with no electronics.Good luck