Because the oil is mixed in with the gas in a 2-stroke engine, combustion tends to produce carbonization more easily than in larger engines. This means that deposits form more quickly and need to be cleaned away more often, so decarbonization is very important. Begin by removing the high voltage cable and spark plugs, then take off the four to six cylinder head nuts. Support the cylinder and carefully pry off the cylinder head, being carefully to damage neither seals nor the head itself.Soak the head in a solvent to loosen and remove the carbon build-up. Use gasoline, paint remover or a professional chemical. Degrease and clean the cooling fins. Use a small brush, such as a toothbrush, to scrape away the deposits that have been loosened. Use a small scraper or toothbrush to reach corner deposits but do not scratch the head. Use the same process for other parts of the cylinder. |
