RE: Cleaning Engine
I use soapy water and a toothbrush. Just make sure not to get any in the engine, so cover the carb air intake with something (stuff a bit of tissue in there) and leave the exhaust manifold on the engine (or find something to cover it with). Really give it a good scrubbing to get rid of all the grime. When you are finished let it dry, and then spray it with WD-40. If you have a compressor i would reccomend blowing off any excess WD-40, or just wipe with a clean rag.