English / USA
Fine Tuning
At high altitude
: Turn high speed screw (H) clock-
wise (leaner) no further than stop
until there is no noticeable increase
in engine speed.
Cutting tool rotates when engine is
idling
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
or after changing the tool.
:
Turn idle speed screw (LA) slowly
counterclockwise until the tool stops
rotating and then turn the screw
1
3
about another /2 to /4 turn in the
At sea level
: Turn high speed screw (H) counter-
same direction.
Rule of thumb
clockwise (richer) no further than
stop until there is no noticeable
increase in engine speed.
:
Turn high speed screw (H) about
a quarter turn for every 1000m
Erratic idling behavior, engine stops
even though setting of LA screw is
correct, poor acceleration
(3300
ft) change in altitude.
It is possible that maximum engine
speed may be reached with the
standard setting in each case.
:
:
Carry out standard setting.
Idle setting too lean:
Warm up engine for about 3
minutes.
:
Turn low speed screw (L)
counterclockwise (no further than
stop) until the engine runs and
accelerates smoothly.
:
Open the throttle wide
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).
Erratic idling behavior
Idle setting too rich:
:
Turn low speed screw (L) clockwise
(no further than stop) until the
engine runs and accelerates
smoothly.
:
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 tool must not rotate.
FC 90
25
| Categories | STIHL Straight Edger Manuals, Straight Edger Manuals |
|---|---|
| Tags | STIHL FC 90 |
| 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, Edger |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)