Stihl FS 100 RX Product Instruction Manual - Page 29

Engine stops while idling N Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly - the cutting attachment must not move. Cutting attachment runs when engine is idling N Turn the idle speed screw (LA) counterclockwise until the cutting attachment stops running and then turn the screw about another 1/2 to 3/4 turn in the same direction. Spark Arresting Screen in Muffler If the engine is down on power, check the spark arresting screen in the muffler. N Wait for the muffler to cool down. N Move the slide control to STOP-0. 1 English N Lift the spark arresting screen (5) and pull it out. N Clean the spark arresting screen. If the screen is damaged or heavily carbonized, fit a new one. N Refit the spark arresting screen. N Insert the screw and tighten it down firmly. N Fit the shroud. 249BA059 KN 249BA060 KN If the working tool or cutting attachment continues to run when the engine is idling, have your machine checked and repaired by your servicing dealer. Erratic idling behavior, engine stops even though setting of LA-screw has been corrected, poor acceleration Idle setting is too lean: N Turn the low speed screw (L) counterclockwise, no further than stop, until the engine runs and accelerates smoothly. Erratic idling behavior Idle setting is too rich N Turn the low speed screw (L) clockwise, no further than stop, until the engine runs and accelerates smoothly. N Take out the screw (1). 3 2 2 N Take out the screws (2) and remove the shroud (3). N Take out the screw (4). FS 100 RX 27