I recently purchase an older YFM 200. I believe it is a 1987 but am not positive.  It has a bent rear axle and i am having trouble finding a replacement.  I was wondering if the axles are compatible with othe atvs. such as YFM 250, Yfs 2oo, are any other models.  Any suggestions would be much appreciated.
Thanks!  

I would look at the 1984-1986 YTM 200 3 wheeler. I think that your 4 wheeler is a chain drive, solid axle with no rear suspension. If it is shaft drive, I would look at the YTM 225 or 200K three wheelers for parts. I am pretty sure that the first yamaha 4 wheeler was just a 200 3 wheeler with a new front end.  

you can check with John at www.RJATV.com
he can check it for you and will be more than happy to help you find a replacement axle.
you can call him or email him and he is always prompt and courteous

tell him Ben at Wolf Performance sent you.  

yes the yfm 200 3 wheeler would have the same axle. i know because i have one in my garage.  

i need help i have a moto4 and i need a pin that connects the shaft to the pin i think but i dont know what it is called does any one