Evinrude Intruder 150 Problems
| Engine Model: Evinrude Intruder 150 |
| Engine Type: 2-stroke 6-cylinder gasoline outboard engine |
| Total Displacement: 158.2 cu.in (2.6 L) |
| Rated Engine Power: 150 Hp (110 kW) at 5500 rpm |
| Fuel System: Downdraft carburetors or direct fuel injection |
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| Engine starts up hard or won't start |
Gas tank is empty - Fill gasoline up.
Improper fuel grade - Use correct fuel grade.
There is air in the fuel system - Bleed the system.
Spark plug wiring connection is damaged - Check spark plug wiring connection, repair or change.
Spark plug is defective - Change spark plug as required.
Clogged fuel filter - Install new filter.
Carburetor is not adjusted - Check carburetor float adjustment.
Dirty fuel lines - Fuel lines need to be cleaned.
Closed or restricted fuel tank air vent - Open or service air vent.
Low fuel pump pressure - Change or rebuild fuel pump.
Reed valve is defective or worn - Replace reed valve.
| Engine starts but immediately shuts off |
Damaged spark plug - Change spark plug as required.
Faulty or clogged carburetor - Service or change carburetor.
Defective ignition coil - Replace ignition coil as necessary.
Fuel tank air vent restricted or closed - Open or service air vent.
Low fuel pump pressure - Replace or repair fuel pump.
Ignition failure - Check ignition and replace faulty components.
Clogged or damaged fuel pump - Check fuel pump and replace if necessary.
Carburetor is dirty - Wash, clean and adjust.
Dirt in the fuel lines - Fuel lines need to be cleaned.
Closed or restricted fuel tank air vent - Open or clean air vent.
Plugged fuel filter - Change fuel filter.
Gaskets are worn - Replace gaskets.
Engine overload - Load reducing required.
Carburetor mixture is too lean - Make the correct settings.
Improper ignition timing - Ignition timing needs to be set properly.
Defective thermostat - Install new thermostat.
Faulty water pump - Install new water pump.
Propeller selection improperly - Replace propeller.
Damaged or bent propeller - Replace propeller.
Outboard motor is mounted too high or too low - Position the engine correctly.
| Abnormal engine noise or knocking |
Stale or low octane fuel - Change fuel.
Excessive engine load - Load reducing required.
Too low idle RPM - Correct the settings.
Fuel pump is damaged or dirty - Check fuel pump and replace if necessary.
Main bearings or crankshaft are worn out - Change defective components as required.
Damaged cylinder bore or piston rings - Replace defective components.
Carburetor is clogged or incorrectly adjusted - Adjust carburetor properly or service it.
Fuel pump is faulty or clogged - Clean or replace fuel pump.
Ignition system malfunction - Check ignition and replace faulty components.
Gaskets are defective - Replace gaskets.
Powerhead parts are faulty - Defective components need to be replaced.
Propeller selection improperly - Replace propeller.
Propeller bent or damaged - Have propeller repaired or replaced.
Engine mounted at wrong transom height - Adjust the outboard motor height correctly.
Improper trim angle - Adjust trim angle correctly.
| Engine uses too much fuel |
Improper carburetor main jet adjustment - Adjust it properly.
Defective or loose spark plug - Tighten or change the spark plug.
Piston, sleeve, or rings are damaged - Change faulty parts.
| Engine vibrates excessively |
Damaged or improper size of propeller - Replace propeller.
Propeller shaft damaged - Replace propeller shaft.
Weeds clogs the propeller - Remove weeds from propeller.
Motor mounting bolt is loose - Tighten the bolt as required.
Loose or faulty steering pivot Tighten or replace.
Battery power is low - Charge the battery.
Battery won’t hold charge - Service or change the battery.
Bad terminals or disconnected battery cables - Check wire connections and change or service terminals.
Defective starter motor - Repair or change starter.
| Trim motor runs but trim system does not move up or down |
Low oil level - Check oil level and add oil as required.
Defective pump assembly - Test pump and replace if necessary.
Leakage of manual release valve - Close the valve fully or replace it.
Motor or pump driveshaft faulty - Replace worn component.
| Trim cannot be fully up or down |
Pump assembly is defective - Replace pump.
Tilt ram piston ball is not positioned correctly - Service or repair.
Damaged tilt ram piston O-ring - Replace O-ring.
Lack of oil - Fill up oil to required level.
Lower check valve is not properly secured in port side trim ram - Install valve correctly.
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