Yamaha tri moto 125 piston

[samotnik39]

Hello.

The question is---i will be doing top end of the engine--the piston from Yamaha has a arrow on the top. What direction the piston should be installed?--arrow pointing to the front of the bike or to the back?

Thanks

[Vealmonkey]

Do you know that if you use a yt175 cylinder, head and exhaust, that you can have a yt175? Oh, you would need the piston too!

[tecat-z]

Arrow toward exhaust.

[samotnik39]

thanks for the help