Mercury 60 ELPT Troubleshooting
| Engine Model: Mercury 60 ELPT |
| Engine Type: 4-stroke inline 4-cylinder gasoline outboard engine |
| Total Displacement: 60.8 cu.in (995 cc) |
| Rated Engine Power: 60 Hp (44.1 kW) at 6000 rpm |
| Fuel System: Electronic fuel injection (EFI) |
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| Engine difficult to start or will not start |
Fuel tank is empty - Fill gasoline up.
Improper fuel grade - Use quality gasoline.
Dirt and debris in fuel system - Remove debris and dirt.
Faulty spark plug wire connection - Inspect spark plug wiring connection, change or repair.
Spark plug is defective - Replace spark plug.
Clogged fuel filter - Install new filter.
Worn or damaged vapor separator needle valve - Change vapor separator needle valve.
Clogged fuel lines - Fuel lines need to be cleaned.
Closed or restricted fuel tank air vent - Fuel tank air vent need to be opened or cleaned.
Faulty fuel feed pump - Fuel feed pump need to be replaced.
Damaged or incorrectly adjusted choke cable - Adjust correctly or change the cable.
Incorrect valve clearance - Adjustment procedure required.
Wrong valve timing - Adjust valve timing as required.
Fuel pressure is low - Check system for fuel leaks or check low pressure fuel pump.
Fuel injector is clogged or malfunction - Clean or replace if necessary.
Fuel regulator failure - Change fuel regulator.
ECM is faulty - Install new ECM.
| Engine starts and stalls immediately |
Spark plug is defective - Replace spark plug.
Worn or damaged vapor separator needle valve - Install new needle valve.
Damaged ignition coil - Ignition coil must be replaced.
Fuel tank air vent closed or restricted - Fuel tank air vent need to be opened or cleaned.
Fuel pump malfunction - Replace or repair fuel pump.
Choke system is damaged - Change choke system components as required.
Improper valve clearance - Check and adjust.
Improper valve timing - Adjust valve timing as required.
Valve springs are bad or broken - Change valve springs.
Stuck valves - Clean the valves.
Poor compression - Check and replace worn parts.
Clogged fuel filter - Replace fuel filter.
Fuel injector is clogged or malfunction - Clean or replace as required.
Engine oil insufficient - Fill up the oil to required level.
Faulty oil pump - Install new oil pump.
Water intake is blocked - Clean and wash as required.
Thermostat is defective - Install new thermostat.
Faulty water pump - Change water pump.
Ignition system problems - Test ignition and replace failed parts.
Dirty or faulty fuel pump - Clean or change fuel pump.
Vapor separator needle valve is bend or wear - Change vapor separator needle valve.
Dirty fuel lines - Clean fuel system lines.
Closed or restricted fuel tank air vent - Open or service air vent.
Fuel filter is plugged - Fuel filter needs changing.
Intake manifold air leaks - Replace intake manifold gasket.
Clogged water intake - Need to clean or wash.
Throttle link and throttle valve are wear or damaged - Replace faulty components.
Fuel injector is damaged or dirty - Replace or clean if necessary.
Engine is under excessive load - Reduce load.
Clogged fuel pump or fuel injector - Replace or clean as required.
Bad ignition timing - Adjust ignition timing correctly.
Faulty thermostat - Change thermostat.
Damaged water pump - Water pump need to be replaced.
Incorrect propeller selection - Check the propeller size.
Damaged or improper size of propeller - Have propeller repaired or replaced.
Outboard motor is mounted too high or too low - Position the engine correctly.
Engine oil level low - Fill the crankcase with engine oil.
Damaged oil pump - Oil pump need to be replaced.
Clogged water intake - Need to clean or wash.
Incorrect valve setting - Valves needs to be adjusted properly.
Stale gasoline - Change gasoline.
Engine is under excessive load - Reduce load.
Low idle speed set incorrectly - Test and adjust.
Clogged or damaged fuel pump - Clean or replace fuel pump.
Worn crankshaft or main bearings - Crankshaft or bearings need to be replaced.
Cylinder bore or piston rings are worn - Replace defective components.
Clogged fuel lines - Service fuel lines.
Fuel injector is defective - Replace fuel injector.
Fuel pump is clogged or faulty - Clean or change fuel pump.
Defective ignition system - Inspect ignition system and change failed components.
Damaged cylinder head gasket - Cylinder-head gasket replacement required.
Powerhead components are worn - Replace defective components.
Burned or stuck valves - Clean or change valves.
Improper propeller diameter or pitch - Check the propeller size.
Propeller bent or damaged - Have propeller repaired or replaced.
Incorrect outboard motor mounting height - Have motor adjusted to proper transom height.
Incorrect trim angle - Make the correct trim angle adjustment.
| Engine using too much gasoline |
Dirty or faulty fuel injector - Clean or install new injector.
Loose or defective spark plug - Replace or tighten spark plug.
Piston, sleeve, or rings are damaged - Replace faulty parts.
Electronic control unit is not operating - Replace ECU.
| Motor vibrates excessively |
Damaged or improper size of propeller - Replace propeller.
Damaged propeller shaft - Replace propeller shaft.
Weeds in the propeller - Remove and clean propeller.
Motor mounting bolt is loose - Tighten bolt.
Loose or faulty steering pivot Tighten correctly or replace.
Battery power is low - Charge the battery.
Battery is not holding charge - Service battery or change it.
Disconnected wires or corroded battery terminals - Connect wiring properly or install new terminals.
Starter motor is damaged - Starter should be replaced.
| Trim motor runs but trim system does not move up or down |
Oil level low - Check and refill oil.
Pump assembly is defective - Test pump and replace if necessary.
Leakage of manual drain valve - Valve need to be closed or changed.
Pump driveshaft or motor damaged - Replace worn component.
| Trim cannot be fully up or down |
Damaged pump assembly - Change pump.
Tilt ram piston ball is displaced - Service or repair.
Damaged tilt ram piston O-ring - Replace O-ring.
Not enough oil - Checking oil level and add if necessary.
Lower check valve not seating in port side trim ram - Install valve correctly.
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