Locate the gearcase vent routed from the gearcase up along the frame. For MX4 models you will need to remove the pinch clamp if it’s still installed.
To do that, remove the line from both clamps, release the pinch clamp and the one-way stock valve, then slide the clamp off the hose.
2. Next, loosen the top allen bolt, securing the vent clamp just enough to remove the line. Before cutting the gearcase vent, install the Warp 9 Gearcase Vent System on the top clamp.
3. Then cut the gearcase vent hose to an appropriate length, approximately 52mm/2inches from the of bottom the clamp.
4. Finally, install the vent hose as far as possible onto the valve.
