Large effective air filter area of the foam pre-filter. Self-cleaning of the paper air filter. Simple single-lever operation for cold start. Operation and stop. Start gas position is automatically established with the setting of the cold start/choke position. Decompression valve with rubber cap for heat protection. Optimum cooling air flow to reduce engine temperature even during hard continuous operation. Scavenging loss reduction technology (SLR). Included accessories: pressurized water fitting, tool set, cut-off wheel stone 350/25.4 mm, reducing ring 25.4/20 mm.