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E
Trouble
Possible Cause
Remedy
8.
Poor connections or damaged ignition
wiring.
8. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Specified engine oil not used.
Thermostat faulty or clogged.
Carburetor adjustments incorrect.
Fuel pump damaged.
9. Check and replace oil as specified.
10. Have serviced by a Yamaha dealer.
11. Have serviced by a Yamaha dealer.
12. Have serviced by a Yamaha dealer.
C. Engine idles
irregularly or stalls.
Air vent screw on the fuel tank closed. 13. Open the air vent screw.
Motor angle too high.
14. Return to normal operating position.
Carburetor clogged.
15. Have serviced by a Yamaha dealer.
16. Connect correctly.
Fuel joint connection incorrect.
Throttle valve adjustment incorrect.
Battery lead disconnected.
17. Have serviced by a Yamaha dealer.
18. Connect securely.
1.
2.
Propeller damaged.
1. Have propeller repaired or replaced.
2. Install correct propeller to operate
outboard at its recommended speed
(r/min) range.
Propeller pitch or diameter incorrect.
3.
4.
Trim angle incorrect.
3. Adjust trim angle to achieve most
efficient operation.
Motor mounted at incorrect height on
transom.
4. Have motor adjusted to proper
transom height.
5.
6.
Warning system activated.
Boat bottom fouled with marine
growth.
5. Find and correct cause of warning.
6. Clean boat bottom.
7.
8.
9.
Spark plug(s) fouled or incorrect type.
7. Inspect spark plug(s). Clean or
replace with recommended type.
8. Remove foreign matter and clean
lower unit.
Weeds or other foreign matter tangled
on gear housing.
Fuel system obstructed.
9. Check for pinched or kinked fuel line
or other obstructions in fuel system.
10. Clean or replace filter.
D. Engine power loss.
10.
11.
12.
13.
Fuel filter clogged.
Fuel contaminated or stale.
Spark plug gap incorrect.
Poor connections or damaged ignition
wiring.
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.
14.
15.
Failed ignition parts.
Specified engine oil not used.
16.
17.
18.
19.
20.
Thermostat faulty or clogged.
Air vent screw closed.
16. Have serviced by a Yamaha dealer.
17. Open the air vent screw.
18. Have serviced by a Yamaha dealer.
19. Connect correctly.
Fuel pump damaged.
Fuel joint connection incorrect.
Heat range of spark plug incorrect.
20. Inspect spark plug and replace it
with recommended type.
5-2
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F9.9C, Yamaha T9.9C |
| Model Year | 2004 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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