Take it all apart, including the carb and first clean it with soapy water, rince and then go with the glow fuel soak. The later will remove the water that remains. Make sure you get the ports in the carb clean also. I've got a couple ultrasonic cleaners that just do wonders for getting the curd out of the tight spots. Ikeep it low on fluid and use some big mouth jars, like salsa comes in, and put the parts and glow fuel in the jar, then suspend the jar in the USfluid. The glass will transfer close to 100%of the enegery through the jar into the glow fuel and contain all of the crud the washes loose. I wouldn't suggest buying a US for just this, but if you are going to be flying a lot, sooner or later it time for new bearings and a good cleaning even without the mud baths and the USis a great addition. I pulled the regulator apart on an O.S120 SII yesterday. the screen was really loaded. I rinsed it with denatured acohol, still not looking good. I used a brush and got a bit more off it. I finally put a half oz of glow fuel in one of the little cups I use for epoxy and droped the screen and hit it for about 15 seconds in the US and it came out looking like new.


Don