Ive been told and have also read where people have used an impact wrench to tighten the flywheel rotor bolt. I'm wondering since it should be at a certain torque, what happens if you over tighten the bolt. Will it damage anything? Or will it only cause the starter clutch to be too tight and not allow the gear to spin freely? Also, since the inside of the rotor appears to be tapered where it slides onto the shaft, if you over tighten the rotor, will it expand the taper and make it where you will never be able to make it properly seat on the shaft without it pushing too tightly against the starter clutch and gear making it impossible for the starter clutch to disengage and spin freely?

Thanks

2005 GS500F

Yes, those are all legitimate opinions (IMO).  The only advantage to using an impact wrench I can see is where one can't hold the shaft still while torquing the nut.

Wow... I would never use an impact wrench to tighten anything like that. It's pretty easy just to hold the clutch basket or crank.

Why would you want to do such a thing? Exceeding torque figures is NEVER a good idea, you run the risk of stretching the threads or even shearing the bolt itself............ Then you really are on s**t street 

Its the matching tapers on the crank and in the flywheel that do all the work and for them to work properly they have to match precisely. If they slip they score and form high spots and the tapers become ineffective. Some less than knowledgeable people have in the past been known to apply extra torque in an attempt to cure the problem of worn tapers and bolts/flywheels that persistently loosen off but this is not an effective way of solving the problem. If the rotor continually slips the solution is to lap the tapers together with very fine grinding place until a uniform fit between the two parts is achieved, get it right, about 80% contact, and it will never slip again.

Thanks for the helpful info. I'll definitely be using a torque wrench.

One other question. Is it ok to hold the bolt/nut on the rh side of the motor where the timing is just behind the small cover to keep the engine from turning while torquing the generator rotor bolt?