Replacing The Air Filter; Engine Management - Stihl BT 131 Manual De Instrucciones

English

Replacing the Air Filter

Filters have an average life of more than
a year. Do not remove the filter cover or
replace the air filter as long as there is no
noticeable loss of power.
If there is a noticeable loss of engine
power.
Remove padding from the handle
N
frame.
3
4
Turn the choke knob to g.
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Take out the screws (1).
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Remove the filter cover (2).
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Clean away loose dirt from around
N
the filter.
Remove the filter element (3).
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Replace dirty or damaged filter.
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Replace any damaged parts.
N
20
Installing the Filter Element
Install the filter element in the filter
N
housing and fit the cover.
Fit the screws and tighten them
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down firmly.
Fit the padding – see "Assembling
N
the Unit".
2
1
1

Engine Management

Exhaust emissions are controlled by the
design of the engine and components
(e.g. carburation, ignition, timing and
valve or port timing).
BT 131