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E
Trouble
Possible Cause
Propeller damaged.
Remedy
1.
2.
1. Have propeller repaired or
replaced.
2. Install correct propeller to operate
outboard at its recommended
speed (r/min) range.
3. Adjust trim angle to achieve most
efficient operation.
4. Have motor adjusted to proper
transom height.
Propeller pitch or diameter incorrect.
Trim angle incorrect.
3.
4.
5.
6.
7.
8.
Motor mounted at incorrect height
on transom.
Boat bottom fouled with marine
growth.
Spark plug(s) fouled or incorrect
type.
Weeds or other foreign matter
tangled on gear housing.
Fuel system obstructed.
5. Clean boat bottom.
6. Inspect spark plug(s). Clean or
replace with recommended type.
7. Remove foreign matter and clean
lower unit.
8. Check for pinched or kinked fuel
line or other obstructions in fuel
system.
9. Clean or replace filter.
10. Fill tank with clean, fresh fuel.
11. Inspect and adjust as specified.
12. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
13. Have serviced by a Yamaha
dealer.
D. Engine power loss.
9.
10.
11.
12.
Fuel filter clogged.
Fuel contaminated or stale.
Spark plug gap incorrect.
Poor connections or damaged
ignition wiring.
13.
14.
15.
Failed ignition parts.
Specified engine oil not used.
Thermostat faulty or clogged.
14. Check and replace oil with
specified type.
15. Have serviced by a Yamaha
dealer.
16.
17.
Air vent screw closed.
Fuel pump damaged.
16. Open the air vent screw.
17. Have serviced by a Yamaha
dealer.
18.
19.
Fuel joint connection incorrect.
Heat range of spark plug incorrect.
18. Connect correctly.
19. Inspect spark plug and replace it
with recommended type.
5-3
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F4C |
| 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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