This insert with 8.40cc volume is the VHM standard for Yamaha YZ85 2002 - 2018 with 12° piston and is developed for the best overall performance. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for indentification.
Use in combination with VHM head AA33041 and 12° VHM piston kit APYZ08521757.
Best overall performance
Quick to adjust
This insert does not fit into an OEM head, only a VHM cylinder head.
Specifications
Part number
AE32059-196
Type
VHM standard
Volume [cc]
8.40
Piston height [mm]
0.00
Squish [mm]
1.30
Piston crown shape
Flat top 12°
Bore
Ø52.50
Applications
Application
Make
Model
Year
Motocross
Yamaha
YZ85
2002-2018