You are looking at a yamaha dt125 10v cylinder. It has scratches,rust, wear and maybe needs rebore as you can see on detailed photos .
It propably fits on other models such as yamaha wr 200 3xp blaster rd 125 dt 200 dt125r dt200r tzr 125 tdr 125 2rk 2rh 4dl 3et 3mb 3bn 37f 4fll belgarda dt125r dt125x dt125re sachs xtc 125 and propably ktm duke 125 and ktm 125 lc2. 
It may has rust, dents ,scratches, wear as you can see on detailed photos. 
  Please check carefully the photos.
 
I have the whole motorcycle in part, ask for anything you may need.
I have a whole vf1000r  and a vf1000f2 in parts. ask me for anything you may need
I HAVE TWO WHOLE BMW R25/2 AND R25/3 MOTORCYCLE FOR PARTS. IF YOY WANT ANYTHING PLEASE CONTACT WITH ME.
You are responsible for any compatibilitty errors. you have to check your own if you buy the right part

 I have  a lot of honda crm 50 parts, a whole engine in parts and others like front fork, wheels, swingarm caliper.
i have yamaha dt 50 engine parts
I have a lot of parts of some Testi motorcycles such as tanks, side panels, front fenders mudguards and a lot others. send me a message to make an ebay selling for you! 

If you are interested, I can send you more better quality pictures, so that you can check the details.

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