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E
Trouble
Possible Cause
Remedy
7.
8.
Spark plug gap incorrect.
Poor connections or damaged ignition
wiring.
7. Inspect and adjust as specified.
8. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
9.
10.
11.
12.
13.
14.
15.
Specified engine oil not used.
Thermostat faulty or clogged.
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. Return to normal operating position.
13. Connect correctly.
C. Engine idles
irregularly or stalls.
Motor angle too high.
Fuel joint connection incorrect.
Throttle valve adjustment incorrect.
Battery lead disconnected.
14. Have serviced by a Yamaha dealer.
15. Connect securely.
1.
2.
3.
Cooling system clogged.
Engine oil level low.
1. Check water intake for restriction.
2. Fill oil tank with specified engine oil.
3. Inspect spark plug and replace it
with recommended type.
Heat range of spark plug incorrect.
4.
5.
Specified engine oil not used.
4. Check and replace oil with specified
type.
D. Warning buzzer
sounds or indicator
lamp lights.
Engine oil contaminated or
deteriorated.
5. Replace oil with fresh, specified
type.
6.
7.
8.
Oil filter clogged.
6. Have serviced by a Yamaha dealer.
7. Have serviced by a Yamaha dealer.
8. Distribute load to place boat on an
even plane.
Oil feed/injection pump malfunctions.
Load on boat improperly distributed.
9.
Water pump/thermostat faulty.
Excess water in fuel filter cup.
9. Have serviced by a Yamaha dealer.
10. Drain filter cup.
10.
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.
E. Engine power loss.
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.
10.
11.
12.
Fuel filter clogged.
Fuel contaminated or stale.
Spark plug gap incorrect.
11. Fill tank with clean, fresh fuel.
12. Inspect and adjust as specified.
5-2
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha LZ250C, Yamaha VZ225C, Yamaha VZ250C, Yamaha Z250C |
| 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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