Kx 80 tech question.

Hi, can anyone advise me what the crankshaft runout tolerance
should be for the Kawasaki kx 80? The bike was a basket case,
and is in the process of being rebuilt. The big end bearing was shot
so I pressed the crank apart and fitted a new Pin/cage/rollers/rod.
I trued the crankshaft to within 001'' across both main bearing
surfaces, fitted the rebuilt crank to the bare crankases with new
main bearings.

On checking the crank runout at the generator end (bottom of the taper)
this was found to be 009'' ....hmmm.

Is this acceptable? Any help here would be much appreciated.

Tim

 

Cheers for the input Harry.
I split the cases again & removed the crank today.
I checked the distance across the flywheels in a transverse direction
( I neglected to do this earlier) & found the cause of the runout...
measured at the crankpin ...zeroed the micrometer.. opposite the
crankpin +004'' . The crank was splayed out opposite the crankpin.

Another bit of tweaking on the flypress and I now have a runout
of less than a thou everywhere...nice.

tim