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Mercury Optimax 175 User Manual

Mercury Optimax 175
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MAINTENANCE
90-855347R1 JANUARY 1999 Page 1B-13
CHECKING GEAR CASE LUBRICANT LEVEL AND REFILLING GEAR CASE
NOTE: Some models may have the vent and fill/drain plugs on the opposite side.
1. Place outboard in a vertical operating position.
2. Remove vent plug (a).
3. Place lubricant tube (b) into the fill hole and add lubricant until it appears at the vent
hole (c).
IMPORTANT: Replace sealing washers if damaged.
4. Stop adding lubricant. Install the vent plug and sealing washer (a) before removing
the lubricant tube.
5. Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer (d).
1-5
a
c
d
b
STORAGE PREPARATION
The major consideration in preparing your outboard for storage is to protect it from rust,
corrosion, and damage caused by freezing of trapped water.
The following storage procedures should be followed to prepare your outboard for out of
season storage or prolonged storage (two months or longer).
CAUTION
Never start or run your outboard (even momentarily) without water circulating
through all the cooling water intake holes in the gear case to prevent damage to
the water pump (running dry) or overheating of the engine.
FUEL SYSTEM
IMPORTANT: Gasoline containing alcohol (ethanol or methanol) can cause a for-
mation of acid during storage and can damage the fuel system. If the gasoline be-
ing used contains alcohol, it is advisable to drain as much of the remaining gaso-
line as possible from the fuel tank, remote fuel line, and engine fuel system.
Fill the fuel system (tank, hoses, fuel pumps, and fuel injection systems) with treated (sta-
bilized) fuel to help prevent formation of varnish and gum. Proceed with following instruc-
tions.
1. Portable Fuel Tank – Pour the required amount of Quicksilver Gasoline Stabilizer (fol-
low instructions on container) into fuel tank. Tip fuel tank back and forth to mix stabiliz-
er with the fuel.
2. Permanently Installed Fuel Tank – Pour the required amount of Quicksilver Gasoline
Stabilizer (follow instructions on container) into a separate container and mix with ap-
proximately one quart (one liter) of gasoline. Pour this mixture into fuel tank.

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Mercury Optimax 175 Specifications

General IconGeneral
BrandMercury
ModelOptimax 175
CategoryOutboard Motor
LanguageEnglish

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