Vhm Cyl. Head Yamaha Yz125 `22-25

The world famous golden VHM head with exchangeable combustion chamber is specially developed for optimal power output during the whole race and has an improved water duct. It's manufactured from a high quality alloy and O-rings are used for the sealing. Use VHM standard insert with OEM CDI: AE32327-F (for hard ground tracks) AE32327-G (for deep sand tracks) Using VHM cylinder head in combination with VHM CDI (CD020422), please use the second insert chart. Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation. More engine power Better heat transference Exchangeable combustion chambers available Inserts must be ordered seperately.