Stihl TS 700 Instruction Manual - Page 48

English Spark Arresting Screen in Muffler In some countries, the mufflers are fitted with a spark arresting screen. N If engine performance deteriorates, check the spark arresting screen in the muffler. WARNING Wait until engine has cooled completely before performing the following operations. Versions There are two different spark arresting screen versions in the muffler. - Spark arresting screen fastened with clip - Spark arresting screen fastened with screw Spark arresting screen fastened with clip N Clean the soiled spark arresting screen N If the screen is damaged or heavily carbonized, fit a new one N Refit the spark arresting screen in reverse order of steps Spark arresting screen fastened with screw 2 1 N Undo screw (1) N Pull out spark arresting screen (2) with a suitable tool N Clean the soiled spark arresting screen N If the screen is damaged or heavily carbonized, fit a new one N Refit the spark arresting screen in reverse order of steps Spark Plug If there is a loss of engine power, the machine is difficult to start or runs poorly at idle, first check the spark plug. Install a new spark plug after approximately 100 operating hours or earlier if the electrodes are eroded/corroded. The wrong fuel mix (too much engine oil in the gasoline), a dirty air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to form on the insulator nose, which may degrade performance. Removing the spark plug N Switch off the engine - move stop switch to STOP or 0 376BA070 KN 377BA012 KN N Use a suitable tool to squeeze ends of clip (1) together and then lift the clip away N Remove the spark arresting screen (2) from the muffler 46 N Unscrew the screw (1) and remove cap (2) - screw (1) is secured in the cap (2) to prevent loss TS 700, TS 800