Evinrude 25 ETEC Troubleshooting
| Engine Model: Evinrude E-TEC 25 |
| Engine Type: 2-stroke 2-cylinder gasoline outboard engine |
| Total Displacement: 35.2 cu.in (577 cc) |
| Rated Engine Power: 25 Hp (18.5 kW) at 6000 rpm |
| Fuel System: Direct fuel injection (DFI) |
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| Engine hard to start or doesn't start |
No gasoline in tank - Add fuel.
Low-quality gasoline - Change fuel.
Dirty fuel system - Check and clean.
Spark plug wire is disconnected or loose - Check spark plug wiring connection, repair or change.
Spark plug is defective - Replace spark plug.
Fuel filter is dirty - Change fuel filter.
Fuel lines are dirty - Clean fuel system lines.
Fuel pressure is low - Inspect fuel system for leaks or inspect low pressure fuel pump.
Low air pressure - Normalize air pressure.
Bad harness connections - Inspect harness connections.
Ignition system malfunction - Check ignition components and replace if necessary.
Defective fuel feed pump - Fuel feed pump need to be replaced.
Fuel injector is damaged or dirty - Replace or clean if necessary.
ECM failure - Change electronic control modul.
Worn or faulty reed valve - Install new reed valve.
| Engine stalls after starting |
Damaged spark plug - Replace spark plug.
Faulty ignition coil - Change ignition coil as required.
Pulse pump is defective - Install new fuel pump.
Fuel system is clogged - Clean fuel system.
Clogged fuel filter - Replace fuel filter.
| Engine runs intermittently |
Ignition system failure - Check ignition system and replace faulty parts.
Faulty spark plug - Change spark plug as required.
Fuel pump is clogged or faulty - Check fuel pump and replace if necessary.
Air pressure is low - Inspect air system for leaks.
Restricted fuel lines - Fuel lines need to be cleaned.
Plugged fuel filter - Install new filter.
Direct injector is damaged - Replace if necessary.
Engine is overloaded - Load reducing required.
Improper ignition timing - Set the ignition timing correctly.
Damaged thermostat - Install new thermostat.
Damaged water pump - Replace water pump.
Propeller selection improperly - Replace propeller.
Damaged or improper size of propeller - Replace propeller.
Outboard engine is mounted too high or too low - Mount the motor as required.
Low octane fuel - Use proper fuel.
Engine is under excessive load - Reduce the load.
Wrong adjustment of low idle speed - Adjustment required.
Dirty or defective fuel pump - Clean or replace fuel pump.
Main bearings or crankshaft failure - Replace crankshaft or bearings.
Worn piston rings or cylinder bore - Replace defective parts.
Fuel pump is clogged or faulty - Clean or install new fuel pump.
Defective ignition - Inspect ignition system and change failed components.
Damaged powerhead parts - Change defective parts.
Fuel pressure is low - Check low pressure fuel pump or check system for fuel leaks.
Air pressure is low - Inspect air system for leaks.
Compression is insufficient - Correct it.
Fuel delivery problem - Check and repair.
Fuel regulator is leaking - Leak must be repaired.
Fuel filter is clogged - Fuel filter needs changing.
Fuel injector is damaged or dirty - Replace or clean if necessary.
Manifold is leaking - Leak must be repaired.
Propeller pitch or diameter incorrect - Replace propeller.
Damaged or bent propeller - Have propeller repaired or replaced.
Incorrect outboard motor mounting height - Adjust the engine to correct transom height.
Trim angle is incorrect - Adjust trim angle correctly.
| Excessive fuel consumption |
Defective or loose spark plug - Re-tighten or replace spark plug.
Worn sleeve, piston, or rings - Replace defective parts.
Engine overloaded - Load reducing required.
Fuel injectors are faulty or clogged - Check fuel injectors and replace if necessary.
| Excessive engine vibration |
Damaged or bent propeller - Replace propeller.
Propeller shaft damaged - Replace propeller shaft.
Weeds clogs the propeller - Remove weeds from propeller.
Engine mounting bolt is not tightened - Tighten bolt.
Loose or faulty steering pivot - Tighten correctly or replace.
Damaged or bent propeller - Replace propeller.
Damaged propeller shaft - Have propeller shaft replaced.
Weeds in the propeller - Clean the propeller.
Engine mounting bolt is not tightened - Tighten bolt.
| Trim motor is running but trim system cannot move up or down |
Oil level is low - Check and refill oil.
Pump assembly faulty - Test pump and replace if necessary.
Manual release valve leaking - Close the valve or change it.
Motor or pump driveshaft faulty - Change defective component.
| Trim cannot be fully up or down |
Pump assembly is damaged - Change pump as required.
Tilt ram piston ball is displaced - Clean or repair.
Damaged tilt ram piston O-ring - Change O-ring.
Low oil level - Check and refill oil.
Lower check valve not seating in port side trim ram - Install valve correctly.
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| Outboard Engines Technical Specifications |
| Small Engines Technical Specifications |
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| Industrial Engines Technical Specifications |
