English
N
N
Start and warm up the engine if
necessary.
Cutting attachment rotates when
engine is idling
Spark Plug
Adjust idle speed with the idle speed
screw (LA) so that the cutting tools
does not turn.
N
Turn the idle speed screw (LA)
counterclockwise until the tool stops
moving and then turn the screw
another full turn in the same
direction.
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
Fine Tuning for Operation in
Mountains or at Sea Level
Fit a new spark plug after approx. 100
operating hours or earlier if the
electrodes are badly eroded.
If the cutting tool continues to
rotate when the engine is idling,
have your machine checked and
repaired by your servicing dealer.
A slight correction of the setting may be
necessary if engine power is not
satisfactory when operating at high
altitude or at sea level.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
Erratic idling behavior, engine stops
even though setting of LA-screw has
been corrected, poor acceleration
N
Warm up the engine.
At high altitude
Turn high speed screw (H)
Idle setting is too lean
N
N
Turn the low speed screw (L)
counterclockwise, no further than
stop, until the engine runs and
accelerates smoothly.
Removing the Spark Plug
clockwise (leaner) – no further than
stop.
N
Shut odd the engine.
At sea level
Turn high speed screw (H)
counterclockwise (richer) – no
further than stop.
Erratic idling behavior, engine speed
drops when swinging the machine
N
1
Idle setting is too rich
2
N
Turn the low speed screw (L)
clockwise (1/8 of a turn or 45° at a
time) until the engine runs smoothly
and accelerates well.
Adjusting Idle Speed
Warm up the engine.
Engine stops while idling
N
It is usually necessary to change the
setting of the idle speed screw (LA) after
corrections to the low speed screw (L).
N
N
Pull off the spark plug boot (1).
Unscrew the spark plug (2).
N
Turn the idle speed screw (LA)
slowly clockwise until the engine
runs smoothly – the cutting
attachment must not turn.
FS 70 RC
27
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Trimmer Manuals, Trimmer Manuals |
|---|---|
| Tags | STIHL FS 70 |
| Download File |
|
| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Trimmer |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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