Stihl 066 Instruction Manual - Page 35

Oil Quantity Control At very low outside temperatures: Allow engine to warm up As soon as the engine runs: • Blip the throttle trigger to disengage it from starting throttle position Master Control lever will move to normal operating position engine settles down to idle speed. • Disengage chain brake: Pull hand guard toward front handle as shown in illustration - • Open throttle slightly warm up engine for short period. • Change over to winter operation if necessary see section "Winter Operation". If engine doesn't start: If you did not move the Master Control lever to "Warm Start" n quickly enough after the engine began to fire, the combustion chamber has flooded. • Turn the knob above the rear handle counterclockwise - 137BA008 KN 137BA010 KN •••• Pull off the spark plug boot. Unscrew and dry off the spark plug.Set the Master Control lever to d Press down the throttle trigger interlock, open the throttle fully and, at the same time, crank the engine several times with the starter to clear the combustion chamber. • Refit the spark plug and connect the spark plug boot - reassemble all other parts • Set Master Control lever to "Warm Start"=n even if engine is cold. • Press in decompression valve again. • Now start the engine. Fuel tank run until dry and then refueled • Press in decompression valve again. • Pull starter rope several times until fuel line is primed. 1 Different quantities of oil are required for different bar lengths, types of wood and cutting techniques. Use the adjusting screw (1) to vary the oil feed rate as required. • Most economic setting turn adjusting screw to "E" (Ematic position). • To increase oil feed turn adjusting screw clockwise. To reduce oil feed turn adjusting screw counterclockwise. 066 33