Yamaha RS90NL Owner's Manual page 65

13. Add sufficient oil of the recommended type to raise it
to the "F" level mark on the oil level gauge/dipstick.
(See page 6-3 for the checking procedure.)
CAUTION :
@
G When adding the engine oil, be careful not to fill
above the "F" level mark on the oil level gauge/
dipstick.
G
Make sure that no foreign material enters the
engine oil tank.
@
14. Start the engine, and then let it idle for several min-
utes while checking it for oil leakage. If oil is leaking,
immediately turn the engine off and make sure the
engine oil drain bolts, cylinder head cap, and oil level
gauge/dipstick are installed correctly.
15. Turn the engine off, connect the oil level gauge cou-
pler, and then install the bottom panel and right side
cover.
CAUTION :
@
If oil is leaking or the oil level warning indicator
comes on when the engine is running, immediately
turn the engine off and have a Yamaha dealer check
the snowmobile. Continuing to operate the engine
under such conditions could cause severe engine
damage.
@
8-11