Setup, Compatibility & Care
This cover is designed as a direct replacement for the Yamaha YZF450 (2023-2025) and WRF450 (2024-2025). To install, remove the three mounting bolts from your existing filter cover and carefully pull it off. Clean the mating surface on the engine casing of any residual oil or dirt. Inspect your original rubber O-ring; if it is stretched or flattened, replace it before installing the Apico cover to prevent leaks. Apply a thin film of clean engine oil to the O-ring, place the Apico cover over the filter, and tighten the bolts to the manufacturer's specified torque settings. Do not overtighten, as this can damage the aluminium threads or pinch the seal.