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HOW TO USE THIS MANUAL
MANUAL FORMAT
All of the procedures in this manual are organized in a sequential, step-by-step format. The informa-
tion has been compiled to provide the mechanic with an easy to read, handy reference that contains
comprehensive explanations of all disassembly, repair, assembly, and inspection operations.
In this revised format, the condition of a faulty component will precede an arrow symbol and the
course of action required will follow the symbol, e.g.,
Bearings
Pitting/scratches → Replace.
To assist you in finding your way through this manual, the section title and major heading is given at
the top of every page.
ILLUSTRATIONS
The illustrations within this service manual represent all of the designated models.
CROSS REFERENCES
The cross references have been kept to a minimum. Cross references will direct you to the appropri-
ate section or chapter.
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MAINTENANCE INTERVAL CHART
MAINTENANCE INTERVAL CHART
The following chart should be considered strictly as a guide to general maintenance intervals.
Depending on operating conditions, the intervals of maintenance should be changed.
*1: After every use
MAINTENANCE INTERVAL INITIALTHEREAFTER
EVERYPAGE
10 hours 50 hours 100 hours 100 hours 200 hours
ITEM6
months12
months12
months24
months
Spark plug Inspect, clean, adjust 3-20
Lubrication points Lubricate 3-26
Fuel system Inspect3-7
Fuel tank Inspect, clean 3-7
Trolling speed Inspect3-6
Throttle shaft Inspect—
Cooling water passages Flush *1 —
Water inlet strainer Inspect, clean —
Bilge strainer Clean3-26
Impeller Inspect3-25
Jet thrust nozzle angle Inspect, adjust 3-2
Shift cable and
mechanism
(Deluxe model only)Inspect, adjust 3-5
Throttle cable Inspect, adjust 3-4
Stern drain plugs Inspect, replace 3-26
Battery Inspect 3-22
Rubber coupling Inspect—
Engine mount Inspect5-7
Nuts and bolts Inspect—
Air filter Inspect, replace 3-18
Engine oil Replace 3-14
Engine oil filter Replace 3-16
Valve clearance Inspect, adjust 3-8
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POWER UNIT
Spark plug inspection
1. Remove:
Ignition coils
CAUTION:
Be careful not to get any foreign sub-
stances or water in spark plug hole.
2. Inspect:
Electrodes 1
Damage/wear →
Replace.
Insulator color 2
Distinctly different color →
Check the
engine condition.
Color guide:
Medium to light tan color:
Normal
Whitish color:
Lean fuel mixture
Air leak
Incorrect settings
Blackish color:
Overly rich mixture
Electrical malfunction
Defective spark plug
3. Clean:
Spark plug
(with a spark plug cleaner or wire brush)
4. Measure:
Spark plug gap a
Out of specification →
Regap.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
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