1. Park the quad on a level surface and turn off the engine.
2. Locate the clutch adjustment screw. On the Eiger 400, the clutch adjustment screw is located on the left side of the engine, just below the clutch lever.
3. Use a screwdriver or Allen wrench to turn the clutch adjustment screw clockwise until it is snug. Do not overtighten the screw, as this can damage the clutch.
4. Start the engine and test the clutch. The clutch should engage smoothly and without slipping. If the clutch is slipping, turn the adjustment screw clockwise a little more.
5. Re-check the clutch adjustment after riding the quad for a few hours. The clutch may need to be adjusted again after it has been used.