The crank case is 1981. The gears are 1980. According to Partzilla, all compatible.
The bearing is all the way in the housing, and all the way into the crank case. There will be a paper gasket going in between, but the gap is way wider than that and there is no way to tighten the bolts. As far as I know there are no spacers going in there.
Can anyone tell me what is going on?
1982 Kawasaki KZ1300 A4
1981 Kawasaki KZ1300 A3
assembling engine, chassis & electrical from 79 - 89 parts
Weird. But I can think of several explanations. Unfortunately my own 1980 crankcase is in one piece again so I can't measure it. It is possible Kawasakis bearing supplyer in 1981 altered this particular bearing to a narrower outer race , or Kawasaki went over to a new bearing manufacturer, which only made the narrow bearing . Then Kawasaki simply machined 1/16" or so from the crankcases to make it fit.
But maybe it's more likely that the bearing is not the original one.
I think I would make up a shim from either steel plate or aluminium. A thick cork gasket will not do in my opinion, it is too soft, so the bearing cap will possibly be distorted when the bolts are torqued