Evinrude 75 ETEC Troubleshooting
| Engine Model: Evinrude E-TEC 75 |
| Engine Type: 2-stroke inline 3-cylinder gasoline outboard engine |
| Total Displacement: 79.1 cu.in (1.3 L) |
| Rated Engine Power: 75 Hp (56 kW) at 5000 rpm |
| Fuel System: Direct fuel injection (DFI) |
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| Engine starts up hard or doesn't start |
No fuel in fuel tank - Fill gasoline up.
Improper fuel grade - Use quality gasoline.
Dirty fuel lines - Inspect and clean.
Damaged spark plug wiring connection - Check spark plug wiring connection, repair or change.
Spark plug is defective - Change spark plug.
Dirty fuel filter - Change fuel filter.
Fuel lines are dirty - Service fuel lines.
Fuel pressure is low - Check low pressure fuel pump or check system for fuel leaks.
Low air pressure - Check air system components.
Damaged electrical wire harness - Inspect harness connections.
Ignition system failure - Check ignition system components and change if necessary.
Fuel feed pump failure - Change fuel feed pump.
Dirty or faulty fuel injector - Replace or clean if necessary.
ECM failure - Change electronic control modul.
Damaged or worn fuel reed valve - Install new reed valve.
| Engine starts and stops suddenly |
Damaged spark plug - Spark plug need to be replaced.
Ignition coil is damaged - Ignition coil must be replaced.
Defective fuel pump - Install new fuel pump.
Fuel system is clogged - Clean fuel system.
Dirty fuel filter - Install new filter.
Ignition system malfunction - Inspect ignition system and change failed components.
Defective spark plug - Replace spark plug.
Fuel pump is damaged or dirty - Check fuel pump and change if required.
Low air pressure - Check air system components.
Restricted fuel lines - Fuel lines must be clean.
Fuel filter is dirty - Replace fuel filter.
Defective direct injector - Install new injector.
Engine overloaded - Reduce the load.
Ignition timing is incorrect - Ignition timing needs to be adjusted correctly.
Thermostat failure - Replace thermostat.
Water pump malfunction - Install new water pump.
Propeller selection improperly - Check the propeller size.
Propeller bent or damaged - Have propeller repaired or replaced.
Outboard motor is positioned too low or too high - Position the engine correctly.
| Abnormal engine noise or knocking |
Low octane fuel - Change gasoline.
Engine is overloaded - Reduce engine load.
Low idle speed setting is incorrect - Adjust as required.
Dirty or faulty fuel pump - Clean or change fuel pump.
Worn crankshaft or main bearings - Replace crankshaft or bearings.
Piston rings or cylinder bore are damaged - Change defective parts.
Fuel pump is faulty or clogged - Inspect fuel pump and change as required.
Ignition system is defective - Inspect ignition system and change faulty parts.
Powerhead parts are damaged - Change defective components.
Low fuel pressure - Check low pressure fuel pump or check system for fuel leaks.
Low air pressure - Check air system components.
Compression is insufficient - Correct it.
Fuel delivery problem - Check and repair.
Fuel regulator is leaking - Leak must be repaired.
Fuel filter is plugged - Install new filter.
Fuel injector is damaged or dirty - Replace or clean as required.
Manifold is leaking - Leak must be repaired.
Improper propeller diameter or pitch - Replace propeller.
Propeller bent or damaged - Replace propeller.
Incorrect outboard motor mounting height - Adjust the outboard motor height correctly.
Trim angle is incorrect - Make the correct trim angle adjustment.
Spark plug is faulty or loose - Tighten or replace spark plug.
Sleeve, piston, or rings are damaged - Replace defective components as required.
Engine overloaded - Reduce engine load.
Clogged or defective fuel injectors - Inspect fuel injectors and change as required.
Propeller bent or damaged - Have propeller repaired or replaced.
Damaged propeller shaft - Have propeller shaft replaced.
Weeds wraped around propeller - Remove and clean propeller.
Motor mounting bolt is loose - Tighten the bolt as required.
Steering pivot is loose or damaged - Tighten correctly or replace.
Damaged or improper size of propeller - Have propeller repaired or replaced.
Propeller shaft damaged - Have propeller shaft replaced.
Weeds wraped around propeller - Remove and clean propeller.
Motor mounting bolt is loose - Tighten the bolt as required.
| Trim motor runs but trim system does not move up or down |
Oil level is insufficient - Fill up oil to required level.
Pump assembly is defective - Test pump and replace if necessary.
Leakage of manual drain valve - Close the valve or change it.
Faulty pump driveshaft or motor - Change worn component.
| Trim cannot be fully up or down |
Pump assembly is damaged - Change pump as required.
Tilt ram piston ball is not positioned correctly - Service or repair.
Worn tilt ram piston O-ring - Replace O-ring.
Low oil level - Checking oil level and add if necessary.
Lower check valve is not properly secured in port side trim ram - Secure valve properly.
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