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Mercury 240 Jet Drive Manual

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Table of Contents

Table of Contents
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Quicksilver Lubricant/Sealant
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Each Use
. . . . . . . . . . . . . . . . . . . . .
After Each Use
. . . . . . . . . . . . . . . . . . . . . . .
Every 10 Hours of Use or Once a Month
Every 50 Hours of Use or Once a Month
Every 100 Hours of Use or Once a Season 1B-3
Fuel System
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Line Inspection
. . . . . . . . . . . . . . . . . .
Specifications
FUEL
Fuel
SYSTEM
Recommended Gasoline
Recommended Oil
IGNITION
Spark Plug Type
SYSTEM
Spark Plug Gap
STARTING
Battery Rating
SYSTEM
DRIVE
Lubricant Capacity
HOUSING
STATOR
Lubricant Capacity
ASSEMBLY
90-884822
DECEMBER 2001
IMPORTANT INFORMATION
Section 1B - Maintenance
1B-1
1B-2
. . . . . . . . . . . . .
1B-2
1B-3
1B-3
1B-3
1B-3
1B-3
1B-4
1B-4
Water Separating Fuel Filter
Spark Plug Inspection
. . . . . . . . . . . . . . . . . . . .
Battery Inspection
. . . . . . . . . . . . . . . . . . . . . . .
Fuse Replacement
. . . . . . . . . . . . . . . . . . . . . .
Flushing Cooling System
. . . . . . . . . . . . . . . . .
Corrosion Protection
. . . . . . . . . . . . . . . . . .
Out-of-Season Storage
. . . . . . . . . . . . . . . . . .
Fuel System
. . . . . . . . . . . . . . . . . . . . . . . . .
Protecting Jet Pump Components
Battery Storage
. . . . . . . . . . . . . . . . . . . . . .
Gasoline w/Oil Injection
Unleaded 87 Octane Minimum
TC-W3 Premium Plus 2 Cycle
Outboard Oil
NGK BPZ8HS-10
0.040 in. (1.0 mm)
670 (Minimum) Marine Cranking Amps
520 (Minimum) Cold Cranking Amps
24 fl. oz. (710 ml)
19 fl. oz. (562 ml)
MAINTENANCE
1
B
. . . . . . . . . . .
1B-4
1B-5
1B-5
1B-6
1B-7
1B-7
1B-8
1B-8
. . . . . .
1B-9
1B-9
Page 1B-1

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Summary of Contents for Mercury 240 Jet Drive

  • Page 1 MAINTENANCE IMPORTANT INFORMATION Section 1B - Maintenance Table of Contents Specifications ......1B-1 Water Separating Fuel Filter .

  • Page 2: Special Tools

    MAINTENANCE Special Tools 1. Grease Gun 91-37299A1 Page 1B-2 90-884822 DECEMBER 2001...

  • Page 3: Maintenance

    MAINTENANCE Maintenance Before Each Use 1. Check that lanyard stop switch stops the engine. 2. Visually inspect the fuel system for deterioration or leaks. 3. Check the engine compartment and use your nose to detect any fuel fumes. 4. Check throttle, shift and steering system for binding or loose components. After Each Use 1.

  • Page 4: Fuel System

    MAINTENANCE Fuel System WARNING Avoid serious injury or death from gasoline fire or explosion. Carefully follow all fuel system service instructions. Always stop the engine and DO NOT smoke or al- low open flames or sparks in the area while servicing any part of the fuel system. Before servicing any part of the fuel system, stop engine and disconnect the battery.

  • Page 5: Spark Plug Inspection

    MAINTENANCE Spark Plug Inspection Inspect spark plugs at the recommended intervals. 1. Remove the spark plug leads by twisting the rubber boots slightly and pull off. Inspect spark plug boots and replace if cracked. 2. Remove the spark plugs to inspect and clean. Replace spark plug if electrode is worn or the insulator is rough, cracked, broken, blistered or fouled.

  • Page 6: Fuse Replacement

    MAINTENANCE Fuse Replacement IMPORTANT: Always carry spare SFE 15 and 20 AMP fuses. The electrical wiring circuits on the jet powerhead are protected from overload by fuses in the wiring. If a fuse is blown, try to locate and correct the cause of the overload. If the cause is not found, the fuse may blow again.

  • Page 7: Flushing Cooling System

    MAINTENANCE Flushing Cooling System Flushing the cooling system is essential after each use in salt water, after the boat has run aground, or when the overheat warning horn sounds (possible debris in jet powerhead). 1. Locate the flush adapter in the boat. Some boats may have the adaptor mounted in the hull or mounted in the engine compartment.

  • Page 8: Out-Of-Season Storage

    MAINTENANCE Out-of-Season Storage WARNING As a safety precaution, when boat is in storage, remove positive (+) battery cable. This will eliminate possibility of accidental starting of engine and resultant over- heating and damage to engine from lack of water. In preparing for out-of-season storage, two precautions must be considered: 1) The engine must be protected from physical damage caused by freezing trapped water and 2) the en- gine must be protected from rust, corrosion and dirt.
  • Page 9 MAINTENANCE h. Turn the engine off. Turn the water off if using a flushing attachment. Allow the water to drain out of the unit completely. Complete the other recommended items for storage. Protecting Jet Pump Components IMPORTANT: Check and refill housing with Premium Gear Lubricant before storage to protect against possible water leakage into housing which is caused by loose lu- bricant vent or fill plug.

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