You can spray the Deep Creep into the carbs while running to the point of loading up the cylinders. Then you turn the motor off for about 15 minutes and then restart at high idle to burn everything off. Refer to the FAQ section below - I'm pretty sure there is a much more detailed description of the process. Just be prepared for a lot of smoke and residue.<br /><br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=36;t=000006Originally posted by Tim Mathis:<br /> The spray, Do you use it when the carbs are still on or is it for when you take them apart for cleaning?