Stihl MS 290 Manual De Instrucciones página 44

Erratic idling behavior, poor
acceleration
Idle setting is too lean.
: Turn the low speed adjusting screw
(L) counterclockwise until engine
runs and accelerates smoothly.
MS 290, 310, 390
Adjustment for operation at high
altitude
A slight correction of the setting may be
necessary if engine power is not
satisfactory when operating at high
altitude:
:
Check standard setting.
:
Warm up the engine.
: Turn the high speed adjusting screw
(H) and low speed adjusting screw
(L) clockwise (leaner)
If you make the setting too lean, the
maximum permissible engine speed
will be exceeded – risk of engine
damage.
English / USA
Spark Arresting Screen in
Muffler*
1
1
1
3
If the engine is low on power, check the
spark arresting screen inside the muffler.
:
Take off the nuts (1).
:
Remove the cover (2).
:
Remove the spark arresting screen
(3).
: Clean spark arresting screen if
necessary.
:
If screen is damaged or coked up,
fit a new one.
:
Refit the spark arresting screen –
fit the cover.
* see "Guide to Using this Manual"
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