What year is my RM250 motor? Engine number RM250-16309

[Simo63]

I think it's a 1978 RM250C2 but can't seem to be able to confirm it

Can anyone help me please.

Thanks

[pokey]

Model Frame Number Engine Number
 
1975 RM125M RM125-10001 – 30000 RM125-10001
 *This is a mid-year model identified by the down-pipe.
1975 RM125S RM125-19800 – ? RM125-19800 – ?
 
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
 
1977 RM80B RM80-10001 to 23348 RM80-10001 to 23634
 RM100B RM100-16022 to 23119 RM100-16024 to 23133
 RM125B RM125-43983 to 61850 RM125-44045 to 62012
 RM250B RM250-20995 to 26795 RM250-21013 to RM250C
 RM370B RM370-17939 to RM400C RM370-17946 to RM400C
 
1978 RM80C RM80-23349 to 39432 RM80-23635 to 39469
 RM100C RM100-23120 to 28311 RM100-23134 to 28327
 RM125C RM125-61851 to 84328 RM125-62013 to 84644
 RM250C RM250-26795 to 30641 RM250- N/A to 307699
RM250C2 RM250-30642 to 38833 RM250-30700 to 39102
 RM400C RM400-100001 to 105659 RM400-100009 to 105680
 
1979 RM60N RM60-100024 to 102730 RM60-100024 to 102730
 RM80N RM80-39433 to 200009 RM80-39470 to 200067
 RM100N RM100-28312 to 33043 RM100-28328 to 27821
 RM125N RM125-84328 to 102502 RM125-84645 to 83086
 RM250N RM250-38834 to 43891 RM250-39103 to 44024
 RM400N RM400-105660 to 109716 RM400-105681 to 109784
 
1980 RM50T RM50-110854 to ? RM50-110894 to ?
 RM60T RM60-102731 to JS1RB11A_B_100000 RM60-102731 to N/A
 RM80T RM80-20001- to JS1RD11A_D_100000 RM80-200068 to N/A
 RM100T RM100-33044 to JS1RE11A_B_100000 RM100-27822 to N/A
 RM125T RM125-102503 to JS1RF11A_B_100000 RM125-83087 to N/A
RM250T RM250-43892 to JS1RJ11A_B_100000 RM250-44025 to N/A
RM400T RM400-109717 to RM465X RM400-109785 to N/A
 
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-______
 
1982 JR50Z LN1JA11A_C_100001 to LN1JA13A_D_100000 JR50-______
 RM60Z JS1RB11A_C_100001 to JS1RB11A_D_100001 RM60-______
 RM80Z JS1RD12A_C_100001 to JS1RD13A_D_100001 RM80-______
 RM125Z JS1RF11A_C_100001 to JS1RF11A_D_100001 RM125-______
 RM250Z JS1RJ12A_C_100001 to JS1RJ12A_D_100001 RM250-______
 RM465Z JS1RM11A_C_100001 to 1983 RM500 RM465-______
 
1983 JR50RD LN1JA13A_D_100001 to LN1JA13A_F1100001 A102-______
 RM60D JS1RB11A_D_100001 to N/A (no RM60 built in 1984) RM60-______
 RM80D JS1RD13A_D_100001 to JS1RD13A_E_100001 D101-______
 RM125D JS1RF11A_D_100001 to JS1RF12A_E_100001 F106-______
 RM250D JS1RJ12A_D_100001 to JS1RJ12A_E_100001 J102-______
 RM500D JS1RM12A_D_100001 to JS1RM12A_E_100001 M101-______
 
1984 JR50 Not built in 1984. N/A
 RM60 Not built in 1984. N/A
 RM80E JS1RD13A_E_100001 to JS1RD13A_F2100001 D101-______
 RM125E JS1RF12A_E_100001 to JS1RF12A_F2100001 F108-______
RM250E JS1RJ12A_E_100001 to JS1RJ12A_F2100001 J102-______
RM500E JS1RM12A_E_100001 M101- ______
 
1985 JR50F LN1JA13A_F1100001 to LN1JA13A_G1100001 A102-______
 RM80F JS1RD13A_F2100001 to JS1RD14A_G2100001 D101-______
 RM125F JS1RF12A_F2100001 to JS1RF13A_G2100001 F108-______
 RM250F JS1RJ12A_F2100001 to JS1RJ13A_G2100001 J102-______




1978-1/2 RM250C2
ENGINE #: RM250-30700

[Simo63]

Thanks Pokey .. so it's an RM250A motor then

[oldfart]

RM250-10001 to 21012     =   1976  model ..... I second that.

Craig....  pistons are the same size as Tm 250   = 70mm

[Simo63]

RM250-10001 to 21012     =   1976  model ..... I second that.

Craig....  pistons are the same size as Tm 250   = 70mm

Thanks Stew.

I'm probably going to sell the motor on as it's surplus to my needs like the other motors I have sold already

Cheers
Craig

[foxy999]

If it's complete I will give you $50.00 for it.

[Simo63]

If it's complete I will give you $50.00 for it.

Thanks Brian .. your generosity exceeds your beauty my friend

[foxy999]

What would you pay for a motor needing a re build? Iam looking at it as a spare for my next addition.
 

[Simo63]

What would you pay for a motor needing a re build? Iam looking at it as a spare for my next addition.

Lol ..I didn't realise you were serious Brian.  Maybe we should talk off forum but it's complete with CDi, black box and coil.  Yes it needs a rebuild but I would think anything of this age would need at least a strip and inspection.  I stipped my YZ400D motor and replaced bearings and seals and it was a very clean and low hour bike on original piston.

This one is just a rebuilder or spare parts proposition and would suit someone that had a suitable roller.

To be honest I was going to dismantle it and sell it off as parts to maximise my return but happy to work with you to help you out if you want.  When will you confirm you have "your next addition"?

[foxy999]

Will arrive in a few weeks.

[Simo63]

Will arrive in a few weeks.

RM250A?  Where is it coming from Brian?

[foxy999]

Yep 250A, it's a secret, got to tell Lisa yet lol