SERVICE
ENGINE OIL
Use only premium 20W50 V-Twin,
detergent motorcycle oil. The quality and cleanliness
of your engine oil, as well as maintaining the proper oil
level helps prevent wear inside your engine.
CHANGING ENGINE OIL
The oil tank should be
drained only after the engine has reached normal
operating temperature and proceed as follows:
1. Position the motorcycle upright and level. The oil drain
is located at the rear of the oil tank.
2. Remove the threaded drain plug and allow oil to drain
completely.
3. Clean debris from the drain plug and reinstall. Do not drain the crankcase.
4. Remove the oil filter; clean the gasket contact surface on the oil filter mounting bracket.
5. Apply a thin film of clean motor oil to the oil filter gasket and mounting bracket surface.
6. Screw the filter onto the mounting bracket using only moderate hand pressure. Do not
over tighten.
7. With the oil drain securely in place, fill the tank to the proper level (see illustration to
the left).
8. Start motorcycle and allow engine to reach operating temperature. Shut off engine
and fill tank to proper level (if needed).
2006 MASTIFF
MAINTENANCE & STORAGE
55
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