SeaDoo Water Flooded 2 Stroke Engine

The goal here is to get the engine restarted and running at operating temperature as quickly as possible.

• This process requires a lot of cranking the engine over to expel as much water as possible. Hook up a battery charger to the battery or utilize jumper wires to a vehicle. BUT, DO NOT START THE VEHICLE. The vehicle charging circuit will damage the MPEM or CDI.
• Remove the spark plugs and spray them with starting fluid or carburetor cleaner to expel the water.
• Attach the spark plug leads to the grounding post and cover the spark plug holes with a rag. The engine will expel a lot of water the first few times it is cranked and covering the spark plug holes will prevent the water from spraying.
• Start cranking the engine to begin the process of expelling water from the engine.
• Continue cranking the engine until the majority of the water is expelled.
• While it will appear most of the water has been removed at this point, the engine cases will still have a fair amount of water. To force this residual water out of the cases, alternate placing your thumb over each spark plug hole while cranking the engine. You will need to push hard with your thumb to seal the spark plug hole against the compression of the piston. Continue alternating back and forth until little to no water is expelled.
• Next, pour a little gas into each cylinder, reinstall the spark plugs and plug wires and try starting the engine by applying full throttle and full choke.
• At first the engine will fire but stop running as the plugs will become fouled from residual water in the engine.
• Repeat the above process until the engine stays running. You may have to repeat the process several times.
• After the engine is running, it needs to be run for an extended period to bring it up to operation temperature for at least 20 minutes. The longer the better as running the engine will remove the last remnants of water from the engine.