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E
Trouble
Possible Cause
Remedy
1.
2.
Cooling system clogged.
Engine oil level low.
1. Check water intake for restriction.
2. Fill oil tank with specified engine
oil.
3.
4.
5.
6.
7.
8.
9.
Heat range of spark plug incorrect.
Specified engine oil not used.
3. Inspect spark plug and replace it
with recommended type.
4. Check and replace oil with
specified type.
5. Replace oil with fresh, specified
type.
6. Have serviced by a Yamaha
dealer.
7. Have serviced by a Yamaha
dealer.
D. Warning buzzer
sounds or
indicator lamp
lights.
Engine oil contaminated or
deteriorated.
Oil filter clogged.
Oil feed/injection pump
malfunctions.
Load on boat improperly distributed.
8. Distribute load to place boat on an
even plane.
9. Have serviced by a Yamaha
dealer.
Water pump/thermostat faulty.
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.
4. Have motor adjusted to proper
transom height.
Motor mounted at incorrect height
on transom.
5.
6.
Warning system activated.
Boat bottom fouled with marine
growth.
5. Find and correct cause of warning.
6. Clean boat bottom.
E.
Engine power loss.
7.
8.
9.
Spark plug(s) fouled or incorrect
type.
Weeds or other foreign matter
tangled on gear housing.
Fuel system obstructed.
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.
11.
12.
Fuel filter clogged.
Fuel contaminated or stale.
Spark plug gap incorrect.
10. Clean or replace filter.
11. Fill tank with clean, fresh fuel.
12. Inspect and adjust as specified.
5-3
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha 60C, Yamaha 70C, Yamaha 90C |
| 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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