Evinrude 150XP Troubleshooting
| Engine Model: Evinrude 150XP |
| Engine Type: 2-stroke 6-cylinder gasoline outboard engine |
| Total Displacement: 149.4 cu.in (2.4 L) |
| Rated Engine Power: 150 Hp (111 kW) at 5750 rpm |
| Fuel System: Dual-throat carburetors |
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| Engine hard to start or won't start |
No gasoline in tank - Add fuel.
Wrong grade of gasoline - Use quality fuel.
Air trapped in fuel system - Bleed air.
Faulty spark plug wire connection - Inspect spark plug wiring connection, change or repair.
Spark plug is defective - Change spark plug.
Dirty fuel filter - Install new filter.
Carburetor is dirty - Wash, clean and adjust.
Fuel lines clogging - Service fuel lines.
Fuel tank air vent clogged or closed - Open or service air vent.
Fuel pump pressure is low - Install new pump or repair it.
Reed valve is faulty or worn - Install new reed valve.
| Engine starts but stops suddenly |
Damaged spark plug - Replace spark plug.
Faulty or clogged carburetor - Clean or replace carburetor.
Ignition coil is not working - Change ignition coil as required.
Closed or clogged fuel tank air vent - Open or clean air vent.
Fuel pump pressure is low - Change or rebuild fuel pump.
Ignition system problems - Inspect ignition system and change failed components.
Fuel pump is defective or dirty - Test fuel pump and change if necessary.
Carburetor not adjusted - Adjust according to instructions.
Restricted fuel lines - Fuel lines need to be cleaned.
Fuel tank air vent restricted or closed - Fuel tank air vent need to be opened or cleaned.
Dirty fuel filter - Change fuel filter.
Gaskets are worn - Change gaskets.
Engine overload - Load reducing is recommended.
Carburetor mixture is too lean - Adjust carburetor properly.
Bad ignition timing - Ignition timing needs to be set properly.
Thermostat is faulty - Change thermostat.
Water pump is defective - Water pump need to be replaced.
Propeller pitch or diameter incorrect - Replace propeller.
Propeller bent or damaged - Replace propeller.
Outboard engine is mounted too high or too low - Mount the motor as required.
Stale gasoline - Change fuel.
Engine overload - Load reducing required.
Low idle speed setting is incorrect - Adjustment required.
Fuel pump is dirty or defective - Check fuel pump and replace if necessary.
Worn crankshaft or main bearings - Crankshaft or bearings need to be replaced.
Damaged piston rings or cylinder bore - Replace defective components.
Incorrectly adjusted or clogged carburetor - Service or correctly adjust carburetor.
Fuel pump is defective or dirty - Test fuel pump and replace if necessary.
Ignition failure - Check ignition system and replace faulty parts.
Gaskets are damaged - Change gaskets.
Damaged powerhead components - Replace defective components.
Propeller pitch or diameter incorrect - Check the propeller size.
Propeller bent or damaged - Replace propeller.
Engine mounted at wrong transom height - Have motor adjusted to proper transom height.
Incorrect trim angle - Adjust trim angle.
| Excessive fuel consumption |
Carburetor main jet is incorrectly adjusted - Adjust it properly.
Loose or faulty spark plug - Tighten or change the spark plug.
Rings, sleeve, or piston are damaged - Replace faulty parts as required.
| Excessive engine vibration |
Propeller bent or damaged - Have propeller repaired or replaced.
Propeller shaft damaged - Have propeller shaft replaced.
Weeds clogs the propeller - Remove weeds from propeller.
Motor mounting bolt is loose - Tighten the bolt as required.
Steering pivot is faulty or loose Tighten correctly or replace.
| Starter motor is not working |
Low battery voltage - Recharge the battery.
Battery discharges quickly - Service or change the battery.
Disconnected wiring or bad battery terminals - Check wire connections and change or service terminals.
Damaged starter motor - Repair or install a new starter.
| Trim motor runs but trim system does not move up or down |
Insufficient oil - Check and refill oil.
Defective pump assembly - Inspect pump and change as required.
Manual release valve leaking - Close the valve or change it.
Broken motor or pump driveshaft - Replace worn component.
| Trim does not fully up or down |
Defective pump assembly - Change pump.
Tilt ram piston ball is displaced - Service or repair.
Worn tilt ram piston O-ring - Change O-ring.
Oil insufficient - Checking oil level and add if necessary.
Lower check valve not seating in port side trim ram - Install valve correctly.
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