E
EMU01204¯
TROUBLESHOOTING
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.
Trouble |
| Possible Cause |
| Remedy | |
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| 1. | Fuel tank empty. | 1. | Fill tank with clean, fresh fuel. | |
| 2. | Fuel contaminated or stale. | 2. | Fill tank with clean, fresh fuel. | |
| 3. | Fuel filter clogged. | 3. | Clean or replace filter. | |
| 4. | Starting procedure incorrect. | 4. | Read "STARTING ENGINE" | |
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| section. | |
| 5. | Fuel pump malfunctions. | 5. | Have serviced by a Yamaha | |
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| dealer. | |
| 6. | Spark plug(s) fouled or incorrect | 6. | Inspect spark plug(s). Clean or | |
A. Engine will not |
| type. |
| replace with recommended type. | |
7. | Spark plug cap(s) fitted incorrectly. | 7. | Check and | ||
start (Starter | |||||
8. | Poor connections or damaged | 8. | Check wires for wear or breaks. | ||
operates). | |||||
| ignition wiring. |
| Tighten all loose connections. | ||
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| Replace worn or broken wires. | |
| 9. | Ignition parts faulty. | 9. | Have serviced by a Yamaha | |
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| dealer. | |
| 10. | Engine stop switch lanyard not | 10. | Attach lanyard. | |
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| attached. |
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| 11. | Shift lever in gear. | 11. | Shift to neutral. | |
| 12. | Engine inner parts damaged. | 12. | Have serviced by a Yamaha | |
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| dealer. | |
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