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Old 02-21-2006, 01:12 AM   #1 (permalink)
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Join Date: Feb 2006
Posts: 2
Default 88 RM125/250 swing arms- same?????

Hello-
I was taking in my 88 RM250 engine because the gear box or crank was jammed. This has turned out to be a piece of the piston skirt that has dropped into the crank case(little sigh of relief). We were worried that a gear had broke or a tooth from a gear had broke off, and jamming up the gear box.
Anyway, I was attempting to take the engine out I noticed when I went to take the swing arm bolt out that there is a crack horizontally across the swing arm pivot bearing journal. Plus the swing arm bolt would not come out. The bearing sleeve had bonded to the bolt, so I had to cut swing arm bolt out.
NOW FOR MY QUESTION: IS A 1988 RM125 swing arm the same as a 1988 RM250 swing arm?? I have access to a 125 swing arm. If I can use it then I won't have to get mine welded or what ever needs to be done.
Help me out guys and gals.
Thanks