Good advice from 'df' basically - get ALL the water out of the engine. The oil is one thing, but it can be difficult to ensure that all the water is out of the fuel tank and pipe work. Best way to ensure this that I've found is to remove the tank from the engine and put it in the oven at 50C for about 30 minutes. While it's 'cooking', you can remove the float chamber and be absolutely certain that there is no water blocking the jets. It WON'T be pulled through the engine, it will simply sit there and stop fuel getting through.
Crank engine as fast as possible with the plug out to ensure that there is no water in the cylinder that could cause a hydraulic lock.
phil_saunders@bigfoot.com
Phil Saunders, June 2008