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Troubleshooting - Yamaha E8D Manual Del Propietário

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A problem in the fuel, compression, or ignition systems can cause poor starting, loss of
power, or other problems. The troubleshooting chart describes basic checks and possible
remedies. (This chart covers all Yamaha outboard motors. Therefore, some items may not
apply to your model.)
If your outboard motor requires repair, bring it to a Yamaha dealer.
If the engine warning indicator is flashing, consult your Yamaha dealer.
Trouble
A. Starter will not
operate.
B. Engine will not start
(Starter operates).
C. Engine idles
irregularly or stalls.
5-1
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TROUBLESHOOTING

Possible Cause
1. Starter components faulty.
2. Shift lever in gear.
1. Fuel tank empty.
2. Fuel contaminated or stale.
3. Fuel filter clogged.
4. Starting procedure incorrect.
5. Fuel pump malfunctions.
6. Spark plug(s) fouled or incorrect type.
7. Spark plug cap(s) fitted incorrectly.
8. Poor connections or damaged ignition
wiring.
9. Ignition parts faulty.
10. Engine stop switch lanyard not
attached.
11. Engine inner parts damaged.
12. Fuel cock is closed.
1. Spark plug(s) fouled or incorrect type.
2. Fuel system obstructed.
3. Fuel contaminated or stale.
4. Fuel filter clogged.
5. Failed ignition parts.
6. Spark plug gap incorrect.
7. Poor connections or damaged ignition
wiring.
8. Specified engine oil not used.
9. Thermostat faulty or clogged.
10. Carburetor adjustments incorrect.
11. Fuel pump damaged.
12. Air vent screw on the fuel tank closed.
13. Choke knob pulled out.
Remedy
1. Have serviced by a Yamaha dealer.
2. Shift to neutral.
1. Fill tank with clean, fresh fuel.
2. Fill tank with clean, fresh fuel.
3. Clean or replace filter.
4. Read "STARTING ENGINE" section.
5. Have serviced by a Yamaha dealer.
6. Inspect spark plug(s). Clean or
replace with recommended type.
7. Check and re-fit cap(s).
8. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
9. Have serviced by a Yamaha dealer.
10. Attach lanyard.
11. Have serviced by a Yamaha dealer.
12. Open the fuel cock.
1. Inspect spark plug(s). Clean or
replace with recommended type.
2. Check for pinched or kinked fuel line
or other obstructions in fuel system.
3. Fill tank with clean, fresh fuel.
4. Clean or replace filter.
5. Have serviced by a Yamaha dealer.
6. Inspect and adjust as specified.
7. Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires.
8. Check and replace oil as specified.
9. Have serviced by a Yamaha dealer.
10. Have serviced by a Yamaha dealer.
11. Have serviced by a Yamaha dealer.
12. Open the air vent screw.
13. Return to home position.
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