help finding the year of manufactor of bike

a friend of mine gave me a 80cc liquid cooled bike. he picked up from another guy on a trade of some sort and never found out what year the thing is. its missing a few minor parts but has a bad piston and possible head damage. if any one could help as to where i may find some parts for this thing along with the year it was born it be great. my son and i are making this our father and son summer project, let me know thanks.  

You need to find the serial # which is stamped on the frame some where. Then call the dealer and they will be able to tell you the year. Before you hang up order a manual for the bike. And good luck with your project.

Show some pics if you can. And Welcome to the board.  
---------------------------

I love this dirt stuff.

still looking for parts tho....lol  

still looking for parts tho....  

your not going to be able to find parts if you dont know the year.  

To find the year it was made you need to find the 17 digit # on steering head of frame. find the 10th digit  B=1981 C=1982 D=1983 E=1984 F=1985 G=1986 H=1987 J=1988 K=1989 L=1990 M=1991 N=1992 P=1993 R=1994 S=1995 T=1996 V=1997 W=1998 X=1999 Y=2000 1=2001 2=2002 3=2003 4=2004 5=2005 6=2006 7=2007 8=2008 9=2009  
--------------------------------------------------------------------------------------------------
"These are the things that condition the man, seldom shown the ways to understand"

Thanks rock.  
---------------------------

I love this dirt stuff.

thanks,,,,for all the help!!! next question,,,  will another year motor be compatable??? if so what years or where do i find such ansers???  i mean the same 80 cc . as close as Original as possible without a bunch of modifications...  

you mean a newer or different engine in the yz chassis? umm, it can be done, dc here put a 490 two stroke engine in a yz125 two stroke frame. it required cutting, and welding and new engine mounts created etc. there is no way to be sure until you try it, i have no idea, nor will anyone here i don't think.  
*******************
the bodies just a vehicle, transporting the soul, it is whats inside of people is beauty to behold

SOUTHERN MAINE

ive got a 1988 rm80, and im looking for another motor...the bike is a 1988 and i find motors for it but not the same year of the bike i have. if anyone has any idea if another motor will work thats just another year ,without a bunch of modifications please get back to me. i want to put another 80cc back in the bike..the bike itself is in pretty good shape and would like it to be as near as original as possible but im having a bummer of a time finding a 1988 80cc motor to put back in it, i found 1992s or as early as a 1985. i maybe gun shy but i dont want to make a purchase and find out ....that it or they wont work...help !!!!!! please  

have you considered calling your local dealership and explaining to them what kind and year of bike you have because they can go through the computers and see any other year of the same kind of bikes motor that can fit your specific year.  
My ride -2002 KX 125

Is this the same formula that you would use for a RM250. Also what kind of oil should I use for the clutch and gears? And should it be filled to the top of the fill plug? Thanks  

the formula as far as finding out what year the bike is my 10th digit is  a K, so it looks like it is an 89. just not sure if its the same formula for this bike or not. thanks  

RidingTheRockies:
To find the year it was made you need to find the 17 digit # on steering head of frame. find the 10th digit  B=1981 C=1982 D=1983 E=1984 F=1985 G=1986 H=1987 J=1988 K=1989 L=1990 M=1991 N=1992 P=1993 R=1994 S=1995 T=1996 V=1997 W=1998 X=1999 Y=2000 1=2001 2=2002 3=2003 4=2004 5=2005 6=2006 7=2007 8=2008 9=2009

Hello!
I have the same problem, i think my rm 125 is a -02, but not sure. And have been testing a vin-decoder, but my vin-number dont match with any year.

JS1RF16A000500472 is my number and the 10th digit is a "0".. soo wich year is that? the bikes apperiance is similar to the other -02 models though.. but it was a trade and therefor im not totally sure if the dude was rigth, he claimed it was a -02, but the 10th digit confuses me..
Somebody know something?..
or i guess i  will call the dealer tomorrow  

Most times I think its the 10th digit from the right. That would make it a "A" but that dont match anything either. You sure the number is right.  
---------------------------

I love this dirt stuff.