OzVMX Forum
Marque Remarks => Suzuki => Topic started by: Slow Pete on January 23, 2015, 09:24:14 pm
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I have a 81 RM250X and the engine number is RM250 - 10120. If I'm reading the list of engine numbers correctly this belongs to a 76 RM250A but it is definitely an X the clutch arm, crank case , cylinder and reed are all X. I know the X has a problem with the main bearings chewing out the cases and I wonder if someone has done something fancy to get around it.
Or am I a Twat, that's reading the engine number list wrong ?
Any help would be greatly appreciated.
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I'd say someone's slipped a right hand case off an A in at some time.
Are they the same or interchangeable?
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Not possible at all ... 81 /X has a completely different reed to induction barrel set to a 76/A
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RM 250 X RM250 1981 RM250-100001 - RM250-102087
Are you sure you didn't miss a number?
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Work on the fact that Your frame number is the Identifier with SUZUKI,
The X should be a Full Reed Aircooled engine
Back to your bearing potential problem easily fixed with new C3 bearings and the appropriate bearing Loctite, buy the Loctite from a bearing company and ask the oldest / Wisest guy behind the counter for his advice
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Back to your bearing potential problem easily fixed with new C3 bearings and the appropriate bearing Loctite, buy the Loctite from a bearing company and ask the oldest / Wisest guy behind the counter for his advice
The guy at my local bearing shop was telling me that the loctite tech videos now recommend machining so that bearings etc drop in (rather than machine for an interference fit) and use their loctite product on everything. Maybe more to do with finding a good tradesmen to do the job in the first place?
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Faaark. Shit. Crikey. You're not recommending farming out work to professionals in their field are you? The stars have aligned and you've finally seen the light.
But then I guess you miss out on the fun ( cathartic) by nou fuc.....king it up yourself ;D ;D ;D
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Back to your bearing potential problem easily fixed with new C3 bearings and the appropriate bearing Loctite, buy the Loctite from a bearing company and ask the oldest / Wisest guy behind the counter for his advice
The guy at my local bearing shop was telling me that the loctite tech videos now recommend machining so that bearings etc drop in (rather than machine for an interference fit) and use their loctite product on everything. Maybe more to do with finding a good tradesmen to do the job in the first place?
belive it or not some motors have bearings loctited in by manufacturers these days. it is cheaper than using expensive machines, tools, etc. to produce tight tolerances and there is no need for presses etc. during assembly process.
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Back to your bearing potential problem easily fixed with new C3 bearings and the appropriate bearing Loctite, buy the Loctite from a bearing company and ask the oldest / Wisest guy behind the counter for his advice
The guy at my local bearing shop was telling me that the loctite tech videos now recommend machining so that bearings etc drop in (rather than machine for an interference fit) and use their loctite product on everything. Maybe more to do with finding a good tradesmen to do the job in the first place?
belive it or not some motors have bearings loctited in by manufacturers these days. it is cheaper than using expensive machines, tools, etc. to produce tight tolerances and there is no need for presses etc. during assembly process.
That's pretty much what i was getting at.
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Faaark. Shit. Crikey. You're not recommending farming out work to professionals in their field are you? The stars have aligned and you've finally seen the light.
But then I guess you miss out on the fun ( cathartic) by nou fuc.....king it up yourself ;D ;D ;D
Haven't f*cked anything up yet.
I don't think there's anything wrong with learning new things when you don't need expensive machinery to do the job. Sounds like you're a bit sensitive about paying someone else ro restore your bikes for you. ;)
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Thanks Guys,
Without doubt it is an X. Not sure what happened with the numbers and It doesn't appear to have a frame number. these are what Vintage Suzuki have up.
Model Frame Number Engine Number
1976 TM75A TM75-27488 to RM80B TM75-27778 to RM80B
RM100A RM100-10001 to 16021 RM100-10001 to 16023
RM125A RM125-30001 to 43982 Not Applicable
RM250A RM250-10001 to 20994 RM250-10001 to 21012
RM370A RM370-10002 to 17938 RM370-10002 to 17945
1981 JR50X LN1JA11A_B_100001 to LN1JA11A_C_100000 JR50-______
RM60X JS1RB11A_B_100001 to JS1RB11A_C_100001 RM60-______
RM80X JS1RD11A_B_100001 to JS1RD12A_C_100001 RM80-______
RM100X JS1RE11A_B_100001 to N/A (no RM100 built in 1982) RM100-______
RM125X JS1RF11A_B_100001 to JS1RF11A_C_100001 RM125-______
RM250X JS1RJ11A_B_100000 to JS1RJ12A_C_100001 RM250-______
RM465X JS1RM11A_B_100001 to JS1RM11A_C_100001 RM465-______
The motor was rebuilt just before I bought it so I have no doubt it was done correctly so no worries there. Just have to find time to ride it now.
Thanks
Pete
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Correctly balancing the crank will save all the bodges on the cases/bearings
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who is "balancing the crank" per say???
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Thanks Lozza,
Good advise.
Pete
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who is "balancing the crank" per say???
Per say or per se ? Whom ever you get to do your cranks
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an alignment rather than a tru balance....
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Faaark. Shit. Crikey. You're not recommending farming out work to professionals in their field are you? The stars have aligned and you've finally seen the light.
But then I guess you miss out on the fun ( cathartic) by nou fuc.....king it up yourself ;D ;D ;D
Come on Ted I do all my own machining.
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That explains it then ;D ;D