Originally Posted by MotoJ
Last bit of innards to come out was the crank. The front crank bearing stayed with the front bearing retainer. The rear bearing stayed on the crank. The conrods are pressed on the shaft in between the lobes, which means they can't be removed like on a BMW, and so the whole shebang has to come out the back end of the case. This turned out to be some kind of Chinese puzzle.
haha.. I was there a couple of years ago.. rebuilt our K-750 engine. There's only one easy way to get the crank out.. Luckily I got some good input from a friend who has rebuilt several of those engines. The lower conrod bearings was shot on our engine, so I replaced the unit with a chinese made one. Didn't have to machine the crank we used. depending on the model/producer, one may need to machine a flange on the driveside of the crank. The centrifuges are a real pain to clean btw, the debris is almost solid. I put in new centrifuges/ slingers in our engine. Had to pull off the gearbox this weekend, I knew something was going on the clutch. Luckily I did this before too much damage was done, the clutch plate retainer screws had started unscrewing themselves. Have used a stronger loctite now, and have punched the screw heads even harder to lock them to the plate..
Putting the clutch back together was a pain.. but I found a (probably factory approved :) ) way to fix it using some 2*4"s and a clamp..