Vintage Dirt Bike Q & A

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 Post subject: Help with 1975 RM125
PostPosted: Fri Apr 13, 2018 9:42 pm 
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Joined: Sat Jan 04, 2014 1:07 am
Posts: 17
Hello,

I recently acquired a 1975 RM125 with a seized crankshaft. The frame is 19515, the engine is stamped "RM125-19682" on the left hand side of the crankcase.

Is the correct part number for the crankshaft assembly

12200-41001 or 12200-41610, for 1975 RM125M per CMSNL, or...

12200-41301 for 1975-1978 RM125 and 76-78 RM100 per OEM-CYCLE.com,

or some other number?

Also, are the parts 12200-41001 and 12200-41301 interchangeable?

Thank you for any help,
Ben


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 Post subject: Re: Help with 1975 RM125
PostPosted: Sun Apr 15, 2018 6:16 am 
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Joined: Sat Jan 04, 2014 1:07 am
Posts: 17
I received the following reply from vintage Suzuki (thank you, Tony):

Part # = 12200-41001
Part Description = CRANKSHAFT ASSEMBLY
Model Count = 2
RM100A 1976 98 RM100 OFF ROAD
RM125-M 1975 123 RM125 OFF ROAD

Part # = 12200-41301
Part Description = CRANKSHAFT ASSEMBLY
Model Count = 3
RM100B 1977 98 RM100 OFF ROAD
RM100C 1978 98 RM100 OFF ROAD
RM125A 1976 123 RM125 OFF ROAD

The second number is not the correct crank.


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