Yamaha F6AMH Manuel D'utilisation page 214

Trouble
D. Warning buzzer
sounds or indicator
lamp lights.
E. Engine power loss.
Possible Cause
1. Engine oil level low.
2. Specified engine oil not used.
3. Engine oil contaminated or deterio-
rated.
4. Oil filter clogged.
5. Oil feed/injection pump malfunctions.
1. Propeller damaged.
2. Propeller pitch or diameter incorrect.
3. Trim angle incorrect.
4. Motor mounted at incorrect height on
transom.
5. Warning system activated.
6. Boat bottom fouled with marine growth.
7. Spark plug(s) fouled or incorrect type.
8. Weeds or other foreign matter tangled
on gear housing.
9. Fuel system obstructed.
10. Fuel filter clogged.
11. Fuel contaminated or stale.
12. Spark plug gap incorrect.
13. Poor connections or damaged ignition
wiring.
14. Failed ignition parts.
15. Specified engine oil not used.
16. Thermostat faulty or clogged.
17. Air vent screw closed.
18. Fuel pump damaged.
19. Fuel joint connection incorrect.
20. Heat range of spark plug incorrect.
21. Engine not responding properly to shift
lever position.
1. Fill oil tank with specified engine oil.
2. Check and replace oil with specified
type.
3. Replace oil with fresh, specified type.
4. Have serviced by a Yamaha dealer.
5. Have serviced by a Yamaha dealer.
1. Have propeller repaired or replaced.
2. Install correct propeller to operate out-
board at its recommended speed
(r/min) range.
3. Adjust trim angle to achieve most effi-
cient operation.
4. Have motor adjusted to proper transom
height.
5. Find and correct cause of warning.
6. Clean boat bottom.
7. Inspect spark plug(s). Clean or replace
with recommended type.
8. Remove foreign matter and clean lower
unit.
9. Check for pinched or kinked fuel line or
other obstructions in fuel system.
10. Clean or replace filter.
11. Fill tank with clean, fresh fuel.
12. Inspect and adjust as specified.
13. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
14. Have serviced by a Yamaha dealer.
15. Check and replace oil with specified
type.
16. Have serviced by a Yamaha dealer.
17. Open the air vent screw.
18. Have serviced by a Yamaha dealer.
19. Connect correctly.
20. Inspect spark plug and replace it with
recommended type.
21. Have serviced by a Yamaha dealer.
5-3
GB
Remedy