Stihl TS 500i STIHL Cutquik Instruction Manual - Page 35

English Engine Management Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. ignition, timing and valve or port timing) without the addition of any major hardware. STIHL Injection STIHL Injection regulates the fuel quantity and ignition timing for all operating states electronically. STIHL Injection stands for easy, fast starting, constant optimum engine performance, outstanding acceleration and automatic adaptation to changes in operating conditions. 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. 2 1 N Remove screw (1) N Pull the spark arresting screen (2) upwards out of the muffler 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 370BA031 KN TS 480i, TS 500i 33