Outboard does not start - what can I do?

If your motor won't start, there's no need to panic. There are usually a few different reasons as to why this is the case and most problems can be dealt with quickly and easily.

1 Spark plugs

One reason why your engine won't start could be because of dirty, wet or faulty spark plugs. Give them a clean and try to start your outboard again. If it still won't start, replace the plugs.
Our tip: Always carry spare spark plugs on board.

2 Fuel

If you’re having problems getting your outboard going, it may be because your fuel tank is empty or the fuel in it is old. Either way, in both cases you'll need to put new fuel in your outboard. Make sure you drain off old fuel completely.
Our Tip: Use a petrol stabiliser to protect your outboard fuel from ageing.

3 Kill switch disconnected

The kill switch on your outboard is for your protection and must be connected when using your motor. If the emergency shut-off switch is not activated, your engine will not start. Make sure it's connected if your motor won't start.

4 Fuel valve

Boat motor won't turn over? It could be because a fuel valve is closed. Try opening the fuel valve so that your motor is supplied with fuel and start the engine again.

5 Air vent not open

Outboard motor won't start and you don't know why? Check the air vent on your outboard tank. Make sure it is open, otherwise your motor won't start.

6 Incorrect storage

A further reason for your outboard not starting could be that it was not stored correctly. If done badly, engine oil can leak and flow into the combustion chamber and carburettor. In these cases, your outboard will not start. Clean your carburettor, top up your engine oil and store & transport your outboard properly next time. You can find out how to transport outboards correctly in our guide to starting your outboard, fuelling and transporting.