| Symptom |
| Presumable Cause |
| Action |
| Starter motor does not | 1. | Battery output is weak | 1. Check/ battery liquid/ or Charge | |
| drive or speed is low. | 2. | Battery is deteriorated | 2. | Change battery |
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| 3. | Battery terminal is OFF or loose | 3. | Fix/Tighten terminal |
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| 4. | Battery terminal is corroded | 4. | Clean terminal |
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| 5. | Starter switch or relay is defective | 5. | Ask our distributor to repair |
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| 6. | Starter motor is defective | 6. Ask our distributor to repair | |
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start | Starter motor drives but | 1. | Fuel is insufficient | 1. | Add fuel |
engine does not start | 2. | Fuel filter is clogged | 2. | Clean/Change fuel filter | |
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not |
| 3. | Gauze filter is clogged | 3. | Clean/Change gauze filter |
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does |
| 4. | Water is interfused in fuel line | 4. | Drain water in water separator, |
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| fuel filter or fuel tank | |
Engine |
| 5. | Air is interfused in fuel line | 5. | Extract the air |
| 6. | Poor piping connection to | 6. | Check piping connection | |
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| external fuel tank |
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| 7. | Fuel tank selector lever | 7. | check lever |
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| valve) position is wrong |
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| 8. | Fuel cut solenoid (motor) does | ||
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| not work | ||
| <Ambient temperature | 1. | Fuel is frozen | 1. | Use winterized fuel |
| falls down below zero> | 2. | Water in fuel line is frozen | 2. | Drain water in fuel line |
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| 3. | 3. | Ask our distributor to repair | |
Engine starts but stalls | 1. | Fuel filter is clogged | 1. | Clean/Change fuel filter | |
immediately | 2. | Gauze filter is clogged | 2. | Clean/Change gauze filter | |
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| 3. | Water is interfused in fuel line | 3. | Drain water in water separator, |
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| fuel filter or fuel tank |
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| 4. | Air is interfused in fuel line | 4. | Extract the air |
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| 5. | Poor piping connection to external | 5. | Check piping connection |
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| fuel tank |
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| 6. | Air filter element is clogged | 6. | Check/Change air filter |
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| element |
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| 7. | Lubricant oil is insufficient | 7. | Supply lubricant oil |
Engine oil pressure is low | 1. | Lubricant oil is insufficient | 1. | Supply lubricant oil | |
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| 2. | Oil filter is clogged | 2. | Change oil filter |
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| 3. | Oil Pressure switch is defective | 3. | Ask our distributor to repair |
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| 4. | Oil pressure meter is defective | 4. | Ask our distributor to repair |
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| 5. | Wrong oil is used | 5. | Change to proper kind and |
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| viscosity oil |
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