ATHENA mechanical exhaust valve for 125 ATHENA racing kit for Yamaha YZ 125 motorcycle from 1997 to 2004

Here is the ATHENA mechanical exhaust valve for 125 ATHENA racing kit for Yamaha YZ 125 motorcycle from 1997 to 2004.

This complete mechanical valve kit makes it possible to eliminate the original system that is very often faulty and to replace it with this totally simple system that works alone (without an electrical system or anything).

Of course, it will be delivered to you in pairs as originally when you receive the cylinder, piston, cylinder head 2T kit.

Mounts on:

Kit 125 ATHENA racing for motorcycle Yamaha YZ 125 from 1997 to 2004