OWNER’S MANUAL
MAINTENANCE - 300 HOURS
GEARCASE LUBRICATION
The gearcase should be filled with 60cc (2.0 fl.oz.) of Mobil SHC634 Synthetic Gear Oil. A maximum of 75 - 80cc can be used, but never exceed 80cc. Operation with excessive oil level will result in high operating temperatures. Do not overfill.
REPLACING THE GEARCASE OIL
Warning: Burn Danger. The gearcase will be extremely hot after use.
1.Disconnect the spark plug wire at the engine.
2.Remove the left hand drum and axle assembly (as viewed from the operating position). Wipe the sideplate clean and remove four screws (it is not necessary to remove the gearcase from the outer tube).
3.Turn gearcase side plate to break the seal and lift the plate from the
gearcase.
Note: It may be necessary to use a heat gun to softenthe sealer material.
4.Turn the gearcase to the left hand side and allow all used gearcase oil to drain into a small container.
5.Place the gearcase on the right hand side and support so the outer tube is parallel to the ground. Refill the gearcase with 60cc (2.0 fl.oz.) of Mobil SHC634 Synthetic Gear Oil to the bottom of the chamfer on the output gear. The correct oil depth is 5/8 inch (15.5mm). Do not over fill.
6.Inspect the sideplate for damage and clean off all remaining liquid gasket material with brake cleaner or acetone. Coat the outer sealing flange of the sideplate with Loctite Ultragrey silicon sealant or Threebond No. 1104 Liquid gasket.
7.Replace the cover and install the four sideplate screws. Tighten securely.
8.Reinstall the drum and axle assembly per the Assembly Instructions on page 4. Fill to this level
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