75/90 4-Stroke Models 115 4-Stroke Models
OIL FILLING
1. Remove the oil fill cap and add oil to proper operating level.
2. Idle engine for five minutes and check for leaks. Stop engine and check oil level on dipstick. Add oil if
necessary.
a - Oil fill cap
Gearcase Lubrication
When adding or changing gearcase lubricant, visually check for the presence of water in the lubricant. If water is
present, it may have settled to the bottom and will drain out prior to the lubricant, or it may be mixed with the
lubricant, giving it a milky colored appearance. If water is noticed, have the gearcase checked by your dealer.
Water in the lubricant may result in premature bearing failure or, in freezing temperatures, will turn to ice and
damage the gearcase.
Examine the drained gearcase lubricant for metal particles. A small amount of fine metal particles indicates normal
gear wear. An excessive amount of metal filings or larger particles (chips) may indicate abnormal gear wear and
should be checked by an authorized dealer.
DRAINING GEARCASE
1. Place outboard in a vertical operating position.
2. Place a drain pan below outboard.
3. Remove vent plugs and fill/drain plug and drain lubricant.
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