Adjusting Idle Speed - Stihl HL 100 Manual De Instrucciones

Fine Tuning
A slight correction of the setting of the
high speed screw (H) may be necessary
if engine power is not satisfactory when
operating at high altitude or at sea level.
Rule of Thumb
: Turn the high speed screw (H)
about one quarter turn for every
1000m (3300 ft) change in altitude.
: Carry out the standard setting
without disturbing the high speed
screw (H) .
: Warm up the engine for about 3
minutes.
: Open the throttle wide.
HL 100
At high altitude
: Turn the high speed screw (H)
clockwise (leaner), no further than
stop, until there is no noticeable
increase in engine speed.
At sea level
: Turn the high speed screw (H)
counterclockwise (richer), no further
than stop, until there is no
noticeable increase in engine
speed.
It is possible that maximum engine
speed may be reached with the
standard setting in each case.

Adjusting Idle Speed

It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
: Warm up the engine for about 3
minutes.
Engine stops while idling
: Turn idle speed screw (LA) slowly
clockwise until the engine runs
smoothly – the cutting blades must
not run.
English / USA
Cutting blades run when engine is
idling
: Turn idle speed screw (LA) slowly
counterclockwise until cutting
blades stop running and then turn
the screw about another 1/2 to 3/4
turn in the same direction
Erratic idling behavior, engine stops
even though setting of LA screw is
correct, poor acceleration
Idle setting too lean:
: Turn low speed screw (L)
counterclockwise, no further than
stop, until the engine runs and
accelerates smoothly.
Erratic idling behavior
Idle setting too rich:
: Turn low speed screw (L) clockwise,
no further than stop, until the engine
runs and accelerates smoothly.
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