Evinrude 112 SPL Troubleshooting
| Engine Model: Evinrude 112 SPL |
| Engine Type: 2-stroke 4-cylinder gasoline outboard engine |
| Total Displacement: 105.4 cu.in (1.7 L) |
| Rated Engine Power: 112 Hp (83 kW) at 5000 rpm |
| Fuel System: Float-feed carburetors |
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| Engine is not starting or hard starting |
Empty fuel tank - Add fuel.
Wrong grade of gasoline - Use quality fuel.
Air in the fuel lines - Bleed the fuel lines.
Spark plug wiring connection is defective - Check the spark plug wire connection, repair or replace.
Spark plug is damaged - Change spark plug as required.
Fuel filter is clogged - Change fuel filter.
Problems with carburetor adjustment - Adjust as required.
Fuel lines clogging - Clean fuel system lines.
Closed or restricted fuel tank air vent - Fuel tank air vent need to be opened or cleaned.
Lack of fuel pump pressure - Change or rebuild fuel pump.
Reed valve is faulty or worn - Replace reed valve as required.
| Engine starts but then shuts off |
Spark plug is damaged - Change spark plug as required.
Carburetor is faulty or clogged - Clean or change carburetor.
Damaged ignition coil - Install a new ignition coil.
Fuel tank air vent restricted or closed - Open or service air vent.
Low fuel pump pressure - Replace or repair fuel pump.
| Engine runs intermittently |
Ignition system failure - Inspect ignition system and change failed components.
Fuel pump is clogged or faulty - Check fuel pump and replace if necessary.
Carburetor is not working properly - Inspect and adjust.
Fuel lines are dirty - Clean fuel lines.
Closed or restricted fuel tank air vent - Fuel tank air vent need to be opened or cleaned.
Clogged fuel filter - Fuel filter needs changing.
Worn gaskets - Replace gaskets.
Engine overloaded - Reduce load.
Too lean fuel mixture in carburetor - Set the carburetor properly.
Bad ignition timing - Set the ignition timing correctly.
Thermostat is defective - Change thermostat.
Damaged water pump - Install new water pump.
Incorrect propeller selection - Install correct propeller.
Propeller bent or damaged - Replace propeller.
Outboard motor is mounted too high or too low - Mount the motor as required.
| Engine knocking sound or abnormal noise |
Low octane fuel - Change gasoline.
Engine overload - Reduce the load.
Incorrectly set low idle speed - Adjust as required.
Fuel pump is damaged or dirty - Clean or replace fuel pump.
Crankshaft or main bearings wear - Change or repair worn components.
Worn piston rings or cylinder bore - Replace faulty components.
Carburetor is improperly adjusted or clogged - Service or correctly adjust carburetor.
Fuel pump is faulty or clogged - Check fuel pump and replace if necessary.
Ignition system malfunction - Check ignition and replace faulty components.
Gaskets are worn - Install new gaskets.
Powerhead parts are faulty - Replace defective components.
Incorrect propeller selection - 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 - Make the correct trim angle adjustment.
| Engine uses too much fuel |
Carburetor main jet adjustment is incorrect - Adjust it properly.
Faulty or loose spark plug - Tighten or replace spark plug.
Piston, sleeve, or rings are damaged - Replace defective components as required.
| Excessive engine vibration |
Damaged or improper size of propeller - Have propeller repaired or replaced.
Damaged propeller shaft - Have propeller shaft replaced.
Weeds clogs the propeller - Clean the propeller.
Engine mounting bolt is not tightened - Tighten bolt.
Damaged or loose steering pivot Tighten or replace.
Battery power is low - Battery is drained, recharge it.
Battery drains quickly - Service charging system or install new battery.
Battery terminals are corroded or wires are disconnected - Connect cables correctly or replace terminals.
Starter motor is defective - Replace or repair starter.
| Trim motor runs but trim system does not move up or down |
Oil level is low - Fill up oil.
Pump assembly is faulty - Inspect pump and change as required.
Manual shut-off valve leaks - Close the valve or change it.
Motor or pump driveshaft faulty - Replace defective component.
| Trim does not fully up or down |
Pump assembly is damaged - Replace pump.
Tilt ram piston ball is in wrong position - Clean or repair.
Tilt ram piston O-ring damaged - Change O-ring.
Insufficient 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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