Post Master General
Join Date: May 2011
Location: THE GOOD LIFE (402)
I Ride: 2009 ZX6R DIABLO BLACK
(article from sportrider monthly)
Getting Rid of Water in a Motorcycle Gas Tank
Water can get into your motorcycle's gas tank in a number of ways, but the most common means is by condensation. If you've allowed your motorcycle to sit for an extended period of time in cold or cooler weather with a half-full or nearly empty gas tank, you've created optimal conditions for condensation to form and accumulate inside the tank. Depending on the severity of the water problem, you may be able to control it yourself with a simple, affordable and easy to find product - SUGAR.
The sugar in the gas will help to burn the water out of the system, and it will fully correct any non-severe water problems.
If the gas tank is full add 1/2 cup of sugar into tank. If tank is half full add 1/4 cup of sugar and if tank is 1/4 full or less add 1/8 cup of sugar.
Try to start your motorcycle. If there is water in the gas tank, it creates the possibility of the engine misfiring. This does not, however, mean that the engine won't run at all. Whether or not your motorcycle will start up will dictate your first course of action. If it starts let bike idle for 15 min. and then ride to nearest gas station and top off tank and your problem is solved. The sugar will extract the water from the gasoline and convert it back to petroleum and there is nothing more you need to do.
If the bike does not start wait 24 hours giving the sugar more time to extract the water and try to start again.
Repeat process until bike starts .