Operation; Prestarting Check List; Operating In Freezing Temperatures; Operating In Saltwater Or Polluted Water - Mercury 25 Jet FourStroke Operation, Maintenance And Installation Manual

Prestarting Check List

• Operator knows safe navigation, boating, and operating procedures.
• An approved personal flotation device of suitable size for each person
aboard and readily accessible (it is the law).
• A ring type life buoy or buoyant cushion designed to be thrown to a
person in the water.
• Know your boats maximum load capacity. Look at the boat capacity plate.
• Fuel supply OK.
• Ensure the boat drain plug is installed.
• Arrange passengers and load in the boat so the weight is distributed
evenly and everyone is seated in a proper seat.
• Tell someone where you are going and when you expect to return.
• It is illegal to operate a boat while under the influence of alcohol or drugs.
• Know the waters and area you will be boating; tides, currents, sand bars,
rocks, and other hazards.
• Make inspection checks listed in Maintenance ‑ Inspection and
Maintenance Schedule.
• Check steering for free operation.
• Check for debris around the rudder and reverse gate which may jam or
hinder operation.
• Before launching, examine the jet drive water intake for obstructions
which may prevent pumping of water.
• Ensure the driveshaft bearing on the jet drive is lubricated.

Operating in Freezing Temperatures

If there is a chance of ice forming on the water, the jet drive should be removed
and drained completely of water. If ice should form at the water level inside the
outboard driveshaft housing, it will block water flow to the engine causing
possible damage. Do not start the engine until the ice is clear.

Operating in Saltwater or Polluted Water

If the boat is kept moored in the water, always tilt the outboard so the water
intake is completely out of water (except in freezing temperatures) when not in
use.
Wash down the outboard exterior and flush out the exhaust outlet of the jet
drive with fresh water after each use. Each month, spray Mercury Precision or
Quicksilver Corrosion Guard on external metal surfaces.

OPERATION

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