Rocker Lever Cover Mounted Crankcase Breather
Do not disturb the crankcase breather gasket located on the rocker lever cover.
NOTE: Exposure to oil can cause the gasket to swell, which can make it difficult to install the gasket back into the groove. If the gasket comes out of the groove, do not attempt to install the gasket. Replace it with a new gasket. Refer to Procedure 003-021 in Section 3.
Clean the rocker lever housing mounting surface with solvent. Dry with a clean shop towel.
Clean the rocker lever cover with solvent. Dry with compressed air.
Inspect the rocker lever cover and rocker lever housing gasket mounting surfaces for nicks, burrs or gouges. Use
a fine crocus cloth with a flat block to remove any minor defects in the surfaces, if necessary.
Inspect the rocker lever cover and crankcase breather oil tube drain fittings for cracks or other damage.
Replace the rocker lever cover and/or crankcase breather oil tube drain fittings if any damage is found.
Inspect the isolators for cracks, tears, or brittleness.
Inspect the capscrew for damage.
Replace the isolator and/or capscrew assembly if damage is found.
It may be necessary to replace the capscrew/isolator as an assembly.
The rocker lever cover gasket is reusable. The gasket must only be replaced if damaged/leaking.
Wipe the sealing surfaces of the rocker lever cover gasket with a clean shop towel.
Inspect the rocker lever cover gasket for tears or cracking.
Replace if any damage is found.
Rear Engine Mounted Crankcase Breather
NOTE: When cleaning the rocker lever cover, if the rocker lever gasket is still installed in the base of the rocker lever
cover, do not submerge the rocker lever cover in solvent.
Limit the amount of exposure the gasket has to solvent.
The gasket is reusable. Once the gasket is removed from the rocker lever cover it must be replaced.
Clean the rocker lever cover with solvent.
Dry with compressed air.
Use compressed air to blow through the crankcase breather cavity of the rocker lever cover.
Inspect the rocker lever cover for cracks or other damage.
Replace the rocker lever cover if any damage is found.
Inspect the isolators for cracks, tears, or brittleness.
Inspect the mounting fasteners for damage.
Replace the isolator and/or mounting fastener if damage is found.
It is not necessary to remove the baffle. There is no mesh or screening located internal to the breather baffle.
NOTE: Check the gasket while it is installed in the rocker lever cover. Once the gasket is removed from the cover it
must be replaced.
Check the gasket for cracks on the sealing surface.
Replace the gasket if damage is present.
Replace the gasket if it is removed from the groove in the rocker lever cover.
