When using another exhaust pipe, it will influence the opening of the power valve. With the VHM power valve adjuster with compression spring, you are able to adjust the opening timing of the powervalve easily with the screw. The VHM powervalve adjuster is made from high quality aluminium.
- Easily adjust the opening timing
The VHM powervalve adjuster fits the VHM cylinder head (AA33112), VHM powervalve base (DA31181) as well as the OEM cylinder head and powervalve base.
