Johnson Bombardier 115 Problems
| Engine Model: Johnson Bombardier 115 |
| Engine Type: 2-stroke 4-cylinder gasoline outboard engine |
| Total Displacement: 119 cu.in (1.95 L) |
| Rated Engine Power: 115 Hp (86 kW) at 5500 rpm |
| Fuel System: Downdraft carburetors or direct fuel injection (DFI) |
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| Engine difficult to start or won't start |
No gasoline in tank - Add gasoline.
Low-quality gasoline - Change fuel.
Air in the fuel pipes - Bleed the fuel pipes.
Defective wiring connection of spark plug - Inspect the spark plug wire connection, replace or repair.
Spark plug is damaged - Change spark plug.
Clogged fuel filter - Install new filter.
Carburetor is not working properly - Inspect and adjust.
Fuel lines are dirty - Fuel lines must be clean.
Fuel tank air vent restricted or closed - Fuel tank air vent need to be opened or cleaned.
Fuel pump pressure is low - Repair or change fuel pump.
Worn or faulty reed valve - Replace reed valve as required.
| Engine starts but immediately stops |
Spark plug is defective - Spark plug need to be replaced.
Carburetor is defective or clogged - Service or replace carburetor.
Ignition coil is defective - Change ignition coil as required.
Fuel tank air vent clogged or closed - Fuel tank air vent need to be opened or cleaned.
Lack of fuel pump pressure - Change or rebuild fuel pump.
Defective ignition system - Test ignition and replace failed parts.
Dirty or faulty fuel pump - Clean or change fuel pump.
Carburetor incorrectly set - Set carb correctly.
Fuel lines clogging - Fuel lines need to be cleaned.
Fuel tank air vent restricted or closed - Open or service air vent.
Fuel filter is dirty - Replace fuel filter.
Gaskets are defective - Install new gaskets.
Engine is running overloaded - Reduce the load.
Too lean carburetor mixture - Make the correct settings.
Improper ignition timing - Set the ignition timing properly.
Thermostat failure - Replace thermostat.
Water pump malfunction - Change water pump as required.
Improper propeller diameter or pitch - Install correct propeller.
Damaged or improper size of propeller - Replace propeller.
Outboard engine is mounted too high or too low - Mount the motor as required.
| Engine knocking sound or abnormal noise |
Stale fuel - Change gasoline.
Engine is overloaded - Reduce load.
Incorrectly adjusted low idle speed - Test and adjust.
Fuel pump is defective or dirty - Check fuel pump and replace if necessary.
Crankshaft or main bearings wear - Install new parts as as required.
Piston rings or cylinder bore are worn - Change defective parts.
| Engine power is insufficient |
Carburetor is incorrectly adjusted or clogged - Clean or properly adjust carburetor.
Clogged or defective fuel pump - Clean or change fuel pump.
Ignition system is defective - Check ignition and replace faulty components.
Gaskets are damaged - Change gaskets.
Powerhead parts are damaged - Defective components need to be replaced.
Incorrect propeller selection - Install correct propeller.
Damaged or bent propeller - Replace propeller.
Outboard motor mounting height is set incorrectly - Check the outboard motor mounting height.
Incorrect trim angle - Adjust trim angle.
Improper adjustment of carburetor main jet - Adjust it properly.
Spark plug is faulty or loose - Tighten or replace spark plug.
Worn piston, rings, or sleeve - Replace faulty components as required.
| Engine vibrates excessively |
Damaged or bent propeller - Have propeller repaired or replaced.
Damaged propeller shaft - Propeller shaft needs to be replaced.
Weeds wraped around propeller - Remove weeds from propeller.
Engine mounting bolt is not tightened - Tighten bolt.
Steering pivot is loose or damaged Tighten or replace.
Low battery capacity - Low battery charging, charge as required.
Battery discharges quickly - Battery needs service or replacement.
Terminals are faulty or battery cables are disconnected - Check cables and clean or change terminals.
Starter motor is damaged - Replace or repair starter.
| Trim motor runs but trim system does not move up or down |
Low oil level - Check and refill oil.
Defective pump assembly - Check pump and replace if necessary.
Leakage of manual drain valve - Valve need to be closed or changed.
Motor or pump driveshaft faulty - Replace worn component.
| Trim cannot be fully up or down |
Pump assembly is damaged - Replace pump.
Tilt ram piston ball is displaced - Service or repair.
Worn tilt ram piston O-ring - Change O-ring.
Oil level low - Check and refill oil.
Lower check valve not seating in port side trim ram - Secure valve properly.
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