Yamaha F60TLR Troubleshooting
| Engine Model: Yamaha F60TLR |
| Engine Type: 4-stroke inline 4-cylinder OHC 8-valve gasoline outboard engine |
| Total Displacement: 60.8 cu.in (996 cc) |
| Rated Engine Power: 60 Hp (44.1 kW) at 5500 rpm |
| Fuel System: Carburetors |
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| Engine difficult to start or doesn't start |
No gasoline in tank - Add gasoline.
Wrong fuel grade - Use quality fuel.
Dirty fuel lines - Inspect and clean.
Damaged spark plug wiring connection - Check the spark plug wire connection, repair or replace.
Faulty spark plug - Spark plug need to be replaced.
Fuel filter is dirty - Change fuel filter.
Carburetor is not adjusted - Check carburetor float adjustment.
Restricted fuel lines - Clean fuel lines.
Fuel tank air vent restricted or closed - Open or service air vent.
Fuel pump malfunction - Replace or repair fuel pump.
Damaged or not adjusted choke cable - Adjust correctly or change the cable.
Excessive valve clearance - Check and adjust.
Valve timing is improper - Adjust valve timing correctly.
| Engine starts and stops suddenly |
Spark plug is defective - Change spark plug.
Faulty or dirty carburetor - Carburetor needs to be replaced or cleaned.
Ignition coil is not working - Replace ignition coil as necessary.
Fuel tank air vent restricted or closed - Open or service air vent.
Faulty fuel pump - Install new pump or repair it.
Faulty choke system - Inspect and replace choke system components.
Valve clearance is improper - Adjustment procedure required.
Valve timing is improper - Adjust valve timing as required.
Loose or worn valve springs - Valve springs need to be changed.
Valves sticking - Clean the valves.
Ignition system failure - Inspect ignition system and change faulty parts.
Clogged or damaged fuel pump - Service or change fuel pump.
Carburetor is not working properly - Inspect and adjust.
Fuel lines are dirty - Clean fuel lines.
Fuel tank air vent restricted or closed - Open or service air vent.
Fuel filter is clogged - Install new filter.
Gaskets are worn - Replace gaskets.
Dirty water intake screen - Clean and wash as required.
Damaged choke system - Check and repair choke system.
Engine is under excessive load - Reduce engine load.
Carburetor fuel mixture is too lean - Use proper settings.
Ignition timing is incorrect - Adjust ignition timing as required.
Thermostat is faulty - Change thermostat as required.
Damaged water pump - Water pump need to be replaced.
Improper propeller diameter or pitch - Replace propeller.
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 is insufficient - Check oil level and add oil as required.
Oil pump malfunction - Install new oil pump.
Water intake is clogged - Need to clean or wash.
Valve setting is improper - Valves needs to be set correctly.
Low octane fuel - Change fuel.
Engine overloaded - Reduce the load.
Incorrectly adjusted low idle speed - Need to adjust idle speed.
Fuel pump is damaged or dirty - Inspect fuel pump and change as required.
Crankshaft or main bearings wear - Worn parts replacement required.
Cylinder bore or piston rings are worn - Replace faulty components.
Clogged or incorrectly adjusted carburetor - Adjust the carburetor properly or clean it.
Clogged or damaged fuel pump - Check fuel pump and change if required.
Defective ignition - Inspect ignition system and change failed components.
Damaged cylinder head gasket - Replace cylinder head gasket.
Powerhead parts are faulty - Replace defective parts.
Stuck or burned valves - Change or service valves.
Propeller selection improperly - Install correct propeller.
Propeller bent or damaged - Replace propeller.
Outboard engine mounting height improperly - Adjust the outboard motor height correctly.
Trim angle is incorrect - Adjust trim angle.
| Engine using too much gasoline |
Carburetor main jet adjustment is improper - Adjust main jet as required.
Spark plug is loose or faulty - Re-tighten or replace spark plug.
Rings, sleeve, or piston are damaged - Replace faulty components as required.
| Excessive engine vibration |
Damaged or improper size of propeller - Have propeller repaired or replaced.
Propeller shaft malfunction - Have propeller shaft replaced.
Weeds wraped around propeller - Clean the propeller.
Engine mounting bolt is not tightened - Tighten bolt.
Steering pivot is loose or damaged Tighten or replace.
Low battery output - Battery needs to be recharged.
Battery drains quickly - Battery needs service or replacement.
Disconnected battery cables or bad terminals - Connect wiring correctly or install new terminals.
Starter motor failure - Change or repair starter.
| Trim motor runs but trim system does not move up or down |
Not enough oil - Check and refill oil.
Defective pump assembly - Check pump and change if required.
Leakage of manual release valve - Close the valve fully or replace it.
Pump driveshaft or motor damaged - Replace worn component.
| Trim cannot be fully up or down |
Defective pump assembly - Replace pump.
Tilt ram piston ball is in wrong position - Clean or repair.
Damaged tilt ram piston O-ring - Install new 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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| Outboard Engines Technical Specifications |
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