Carbon buildup from the exhaust is what clogs the muffler. I don't think squirting water inside will be a very effective solution. Usually you have to cut it open, clean it out, and weld it back together.
Also, there are two adjustment screws on the carburetor. The one on top should be turned CW to increase idle speed. The throttle grip has very little to do with this (unless it's stuck or the cable is too loose/tight etc.). I think you're better off finding the screws on the carb. By the way, the lower screw is the idle adjustment ratio screw. It should be approx. 1.5 to 2 turns out.
Posted on Nov 9, 2003, 12:09 PM from IP address 65.49.71.65
