001BA216 KN

In case of stubborn dirt or stuck filter fabric

NWash the filter in STIHL special- purpose cleaner (special accessory) or a clean, non- flammable cleaning liquid (e. g., warm soapy water) – rinse the filter from inside to out under a water jet

– do not use high-pressure cleaners

NDry all filter parts – do not expose to extreme heat

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1

001BA217 KN

NFit the felt prefilter (1) over the HD filter (2), note installation position

The felt prefilter protects the HD filter and increases its service life. Thus it should be replaced at shorter intervals than the HD filter.

Always replace a damaged filter.

NReinstall filter

Engine Management

Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware.

English

M-Tronic

Basic information

M-Tronic regulates the fuel quantity and ignition timing for all operating states electronically.

M-Tronic stands for easy, fast starting, constant optimum engine performance, outstanding acceleration and automatic adaptation to changes in operating conditions.

Manual carburetor adjustments are no longer required – the carburetor does not have any adjusting screws.

Automatic adjustment

Under extremely changed operating conditions, attainment of the optimal setting can be accelerated as follows:

NCarry out five uniform cuts to length under full load

MS 441 C-M

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