You either have to buy the CORRECT puller or make something up.....
Almost every time I split a case, I go in my box of goodies and there is something I can use or modify just a bit to work.
The left or stator case - I usually use 2 or 3 long threaded studs (that I weld together sometimes) - those thread into the case either where the stator mounted or where the OEM guys left you holes to use. The other piece is a flat plate of 1/2 x 1.5" inch steel that the studs bolt to. The center hole in that plate is threaded (by me) 1/2-13 and uses a piece of 1/2 rod with a nut welded on one side and usually to a point on the other so it pushes the crank away from the case without slipping off....
Please don't make me take a picture........................................... .. I'm tired and it's fricken MO FO cold!!!!!!!!!!!!!!!!!!!!!!!!!!!
It is not a blind bearing puller, it is a case seperator, and nothing should ever hit the crank.
Once that left side is off, the right side of the crank can be pressed out on a press with the dowel pins removed and the case protected.
Make sense??
EDIT - aren't there pics of the puller/pusher I made in my "20 day trikefest 86 200X build" thread??
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country