Evinrude 90 ETEC Troubleshooting
| Engine Model: Evinrude E-TEC 90 |
| Engine Type: 2-stroke inline 3-cylinder gasoline outboard engine |
| Total Displacement: 79.1 cu.in (1.3 L) |
| Rated Engine Power: 90 Hp (67 kW) at 5000 rpm |
| Fuel System: Direct fuel injection (DFI) |
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| Engine difficult to start or will not start |
No fuel in fuel tank - Fill gasoline up.
Low-quality gasoline - Change gasoline.
Air in the fuel pipes - Bleed the fuel pipes.
Spark plug wire connection are damaged - Check spark plug wiring connection, repair or change.
Defective spark plug - Change spark plug.
Fuel filter is dirty - Fuel filter needs changing.
Fuel lines are clogged - Clean fuel lines.
Fuel pressure is low - Inspect low pressure fuel pump or inspect fuel system for leaks.
Air pressure is low - Check air system components.
Bad harness connections - Check electrical wire harness connections.
Defective ignition system - Check ignition components and replace if necessary.
Faulty fuel feed pump - Install new fuel feed pump.
Fuel injector is faulty or clogged - Clean or replace as required.
ECM failure - Install new ECM.
Reed valve is defective or worn - Replace reed valve as required.
| Engine stops after starting |
Damaged spark plug - Install new spark plug.
Ignition coil is damaged - Change ignition coil as required.
Defective fuel pump - Change fuel pump.
Fuel system clogging - Clean fuel system.
Plugged fuel filter - Replace fuel filter.
Ignition system malfunction - Check ignition system and replace faulty parts.
Faulty spark plug - Change spark plug as required.
Fuel pump is damaged or dirty - Test fuel pump and replace if necessary.
Air pressure is low - Check air system components.
Restricted fuel lines - Clean fuel system lines.
Fuel filter is plugged - Install new filter.
Defective direct injector - Replace as required.
Engine overload - Reduce engine load.
Incorrect ignition timing - Adjust ignition timing as required.
Defective thermostat - Install new thermostat.
Water pump is defective - Change water pump.
Propeller pitch or diameter incorrect - 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.
Stale gasoline - Use proper fuel.
Engine overloaded - Load reducing is recommended.
Low idle speed setting is not correct - Adjust idling as required.
Fuel pump is dirty or defective - Check fuel pump and change if required.
Crankshaft or main bearings failure - Replace crankshaft or bearings.
Damaged cylinder bore or piston rings - Change defective parts.
Dirty or faulty fuel pump - Check fuel pump and replace if necessary.
Ignition system is defective - Check ignition and replace faulty components.
Worn powerhead components - Replace defective parts as required.
Fuel pressure is low - Inspect fuel system for leaks or inspect low pressure fuel pump.
Air pressure is low - Check air system components.
Low compression - Correct it.
Fuel delivery problem - Check fuel system.
Fuel regulator leaks - Leak must be repaired.
Fuel filter is plugged - Install new filter.
Fuel injector is faulty or clogged - Clean or replace if necessary.
Manifold fuel leak - Leak must be repaired.
Propeller pitch or diameter incorrect - Install correct propeller.
Propeller bent or damaged - Have propeller repaired or replaced.
Outboard motor mounting height is set incorrectly - Adjust the engine to correct transom height.
Trim angle is incorrect - Adjust trim angle.
| Engine using too much gasoline |
Defective or loose spark plug - Change or re-tighten spark plug.
Sleeve, rings, or piston are damaged - Replace faulty components as required.
Excessive engine load - Reduce load.
Fuel injectors are dirty or defective - Test fuel injectors and replace if necessary.
| Engine vibrates excessively |
Propeller bent or damaged - Have propeller repaired or replaced.
Damaged propeller shaft - Replace propeller shaft.
Weeds wraped around propeller - Remove and clean propeller.
Motor mounting bolt is loose - Tighten bolt.
Steering pivot is faulty or loose - Tighten correctly or replace.
| Starter motor is not working |
Propeller bent or damaged - Have propeller repaired or replaced.
Propeller shaft malfunction - Have propeller shaft replaced.
Weeds clogs the propeller - Remove weeds from propeller.
Motor mounting bolt is loose - Tighten the bolt as required.
| Trim motor is running but trim system cannot move up or down |
Oil insufficient - Need to add the oil.
Pump assembly is faulty - Inspect pump and change as required.
Manual release valve leaking - Close the valve or change it.
Pump driveshaft or motor damaged - Replace defective component.
| Trim cannot be fully up or down |
Defective pump assembly - Change pump as required.
Tilt ram piston ball is displaced - Clean or repair.
Worn tilt ram piston O-ring - Change O-ring.
Oil level low - Fill up oil.
Lower check valve not seating in port side trim ram - Install valve correctly.
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| Outboard Engines Technical Specifications |
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