Tohatsu MFS 30 — руководство по устранению неполадок для двигателей 25/30 HP [274/319]

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Tohatsu MFS 30 [274/319] Troubleshooting list
9-2
Troubleshooting
O
K
25/30 2006
1.Troubleshooting List
Probable Cause
oo Fuel level is low in the tank.
o ooo ooo Fuel system connection is incomplete.
o ooo ooo Fuel system sucks air.
o ooo ooo Fuel pipe is twisted.
o ooo ooo Cap vent is closed.
o ooo ooo Fuel filter, fuel pump or injector is clogged.
ooooo Low quality gasoline is used.
o Primer bulb is clogged.
o ooo ooo Fuel feed pump (FFP) malfunctions or is clogged.
o* o*
Water temperature sensor or MAP (Manifold Pressure) sensor is
defective or the sensor circuit is disconnected.
oo ooo Low quality engine oil is used.
oo
Engine oil quantity excessive (Exhaust smoke is generated.)
o* o o* Engine oil is lacking (Oil pressure switch operates).
o* o o* Oil filter is clogged (Oil pressure switch operates).
o* o o* Oil pump is defective (Oil pressure switch operates).
o ooo ooo Use of spark plugs not specified.
o ooo oo Spark plug is contaminated.
o ooo oo No sparks or weak spark.
o Stop switch short-circuited.
o Stop switch lock is not put.
o ooo
Defective wiring, earth, wire disconnected or loosened.
o ooo
Battery charging is defective, or rectifier malfunctions.
Cell(o)
ooo
Battery is dead, connection is loose or corroded. Battery electrolyte level is low.
o ooo 20A fuse is blown.
ooShift lever neutral (N) position is not proper.
oooStart switch or main switch is defective.
oo
Starter motor or starter solenoid operation is defective.
o PTT switch or solenoid is defective.
o Air is mixed in PTT fluid.
o ooo o
Valve timing is not correct (Belt is stretched or installed incorrectly).
o ooo o Valve clearance is defective.
o ooo o Valve seat sealing is defective.
o ooo o
Piston, piston ring and/or cylinder is worn excessively.
oo Combustion chamber car deposition is too much.
oo oo Spark plug is loose.
oo*oo o*
(Cooling water is lacking.) Pump is defective or clogged.
o* o o o* Thermostat operation is defective.
oo oo o Anti-cavitation plate is damaged.
ooooo o Use of mismatched propeller.
oooooo o Propeller is damaged or deformed.
oo oo o Thrust rod position is not correct.
ooooo o Boat is unbalanced by load position.
ooooo o Transom installation height is too high or too low.
ooo Throttle link adjustment is defective.
Engine will not start.
Fuel and Lubrication Systems Electrical System
Compression System
Others
Engine stalls immediately
after starting.
Defective idling
Defective acceleration
Engine speed is very high causing
high speed ESG to operate.
Boat cannot run at high
speed.
Engine speed is very low, causing
low speed ESG to operate.
Engine overheats.
Battery is not charged.
Starter motor will not
operate.
Power tilt will not
operate.
Warning lampislit.
Warning lamp blinks.
* Low speed ESG operates.
MFS25_30_ch09.qxd 06.3.9 5:02 PM ページ 2

Содержание

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Узнайте о распространенных проблемах и их причинах для двигателей мощностью 25 и 30 л.с. Читайте советы по устранению неполадок и поддержанию работоспособности.