Engine Management - Stihl MS 251 Manual De Instrucciones

English
Wash the filter in STIHL special
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cleaner (special accessory) or a
clean, non-flammable solution (e.g.
warm soapy water). Rinse the filter
from the inside outwards under a jet
of water – do not use a pressure
washer.
Dry the filter components – do not
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expose to high temperatures.
NOTICE
High temperatures and oil can damage
the air filter. Filter efficiency can
deteriorate as a result.
Allow air filter to dry without using
–
any external source of heat.
Do not impregnate the filter with oil.
–
Install the air filter.
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Cleaning the air filter (HD2 filter)
Knock out the filter.
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Spray outside of filter with STIHL
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special cleaner or soapy water.
Rinse outside of filter under warm
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running water.
NOTICE
High temperatures and oil can damage
the air filter. Filter efficiency can
deteriorate as a result.
Allow air filter to dry without using
–
any external source of heat.
Do not impregnate the filter with oil.
–
Allow air filter to dry.
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Install the air filter.
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46
Installing the air filter
1.
2.
Place the air filter in position.
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Push the air filter in the direction of
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the filter housing and turn it
clockwise at the same time until it
engages – the "STIHL" name must
be horizontal.
Install the shroud – see "Shroud".
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Engine Management

Exhaust emissions are controlled by the
design of the engine and components
(e.g. carburation, ignition, timing and
valve or port timing).
MS 251, MS 251 C