Quote:
Originally Posted by sc00ter
That sounds weird and interesting! So, the crank split in half... I would press them out I guess, as I have never seen that happen before. Note that the bearings will (should) stay on the crank arms and they cannot be reused, no matter if you get them off and they spin smooth. We can usually reuse the old crank if needed when we split motors. So, press the crank halves out? What crank are you getting to replace it? Going stock or a slight upgrade? A upgraded crank cost a bit more and gives you the worry free option if you ever go with a bbk in the future. What sucks is we recycle the old, stock cranks after removing them. Have zero interest in stock motors.
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This thing was abused. I think they ran it quite a while with bad bearings. Both sides were bad. I could wiggle both the clutch shaft and magneto side. Pull on the connecting rod and you could see the crank shaft moving as well. Piston was a little scored also, but cylinder looks to be OK, cast iron I believe. I am just going to put it back to stock. If I am going to mod something it is going to be an older Zuma, like those scoots.