Troubleshooting Chart - TOHATSU MX 50D2 Service Manual

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Troubleshooting
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1.Troubleshooting Chart

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9-2
Fuel level is low in the tank.
Fuel system connection is incomplete.
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Air suctioned through fuel system
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Fuel pipe is twisted.
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Cap vent is closed.
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Fuel filter, fuel pump or carburetor is clogged.
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Low quality gasoline is used.
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Fuel pump malfunction
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Choke system malfunction
Fuel is fed excessively.
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ngine oil quantity excessive ( xhaust smoke is generated.)
Piston, piston ring and/or cylinder is worn excessively.
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Combustion chamber carbon deposition is too much.
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Spark plug is loose.
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Use of spark plugs not specified
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Spark plug is contaminated.
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No sparks or weak sparks
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Stop switch short-circuited
Ignition timing is not properly adjusted.
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Stop switch lock is not attached.
Disconnection of lead wires or loose earth wire
Cooling water is not fed or low due to malfunction or clogging of pump
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Thermostat operation is defective.
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Anti-cavitation plate is damaged.
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Use of mismatched propeller.
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Propeller is damaged or deformed.
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Trim position is not correct.
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Boat is unbalanced due to improper load position.
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Transom is too high or too low.
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Throttle link adjustment is defective.
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stimated Cause
Refer to page
Chapter 1
Chapter 2
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Chapter 3
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Chapter 4
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Chapter 4
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Chapter 4
Chapter 3
Chapter 5
Chapter 5
Chapter 3
Chapter 3
Chapter 3
Chapter 8
Chapter 8
Chapter 3
Chapter 1
Chapter 8
Chapter 6
Chapter 3
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Chapter 1
Chapter 3
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-
Chapter 1
Chapter 3
2st X50D2 2011