I picked up an old Ski-Doo Tundra this summer that has been sitting for a number of years. The tank smelted really bad so I though I'd better empty her out, clear the lines, and clean the carb. While emptying out the tank, the gas looked like muddy water, there was also a sludge like substance left at the bottom, and quite a bit of it. The consistency reminded me of peanut butter.
Does anyone know the best way to clean this stuff out? Will varsol work?