Maintenance & Technical > KX500 Original

Needsome thought's Fly wheel

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IcemanK5:
I have a 90 KX500.
The bike has a heavy fly wheel adpator bolted to it......let me exsplane.

You have a stock fly wheel with the bolt in the center. Then my bike has a weight bolted to the fly wheel. It screws on to the end of the remaining threads of the crank shaft and covers the end of the fly wheel face. Then they use allen threaded screw's to help lock it in place. You have to unscrew the allen's screws and unscrew the fly wheel weight to remove it leaving just the fly wheel itself. A pully puller works for the fly wheel, I got that, but ..........
How do you hold the crank so you can unscrew the added fly wheel weight,
the fly wheel weight does tighten up against the fly wheel??

Thanks Kurt

SCKawi500:
one way is to remove the spark plug, put some rope in the spark plug hole, then remove flywheel weight, I just so happen to have a chain wrench that fit around the weight.

Hillclimb#42:
I had one of those, when I bought my bike. If I remember right, the hard part was holding the flywheel while turning the weight. I used a long straight screwdriver. I had to kinda jamb it between the frame and a spot on the flywheel. The frame spot was on  a joint on the frame directly under where you sit. I know its not the right way, but I only had to take it off twice before leaving it off. Hope that helps...

Goat:

--- Quote from: Hillclimb#42 on February 17, 2010, 01:57:16 PM ---I had one of those, when I bought my bike. If I remember right, the hard part was holding the flywheel while turning the weight. I used a long straight screwdriver. I had to kinda jamb it between the frame and a spot on the flywheel. The frame spot was on  a joint on the frame directly under where you sit. I know its not the right way, but I only had to take it off twice before leaving it off. Hope that helps...

--- End quote ---

Wear safety glasses :P I've used the same method before and had the screwdriver break.

IcemanK5:
I'm going to see if I can pick up a rubber band wrench that will hold the fly wheel. I then can install to bolts into the weight, hold the fly wheel and spin the weight off,,,,I hope.
Jaming the fly wheel or using a rope....I just don't know about that. Sounds like it could make more problems than I want.

Kurt 

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