English / USA
Rule of thumb
Turn high speed screw (H) about
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
:
:
Turn idle speed screw (LA) slowly
counterclockwise until cutting tool
stops rotating and then turn the
screw about another /2 to 1 turn in
the same direction.
1/4
turn over for every 1000m
(3.300
ft) change in altitude.
Conditions for adjustment
1
At sea level
Turn high speed screw (H) counter-
Adjust the high speed screw (H)
only if you are using a mowing head,
making sure the cutting lines are full
length (as far as the limiter blade on
the deflector).
:
clockwise (richer) no further than
stop until there is no noticeable
increase in engine speed.
Erratic idling behavior, engine stops
even though setting of LA screw is
correct, poor acceleration
If you mount a metal cutting tool,
use the standard setting.
It is possible that maximum engine
speed may be reached with the
standard setting in each case.
Idle setting too lean:
:
Turn low speed screw (L)
counterclockwise (about 1/4 turn)
until the engine runs and
accelerates smoothly.
:
:
Carry out standard setting without
changing position of high speed
screw (H).
Adjusting Idle Speed
Warm up engine for about 5 minutes
if you are using a metal cutting tool
or about 3 minutes if you are using a
mowing head.
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
:
Open the throttle wide.
1
(about / turn) until the engine runs
:
Warm up the engine.
4
and accelerates smoothly.
Engine stops while idling
:
Turn idle speed screw (LA) slowly
clockwise until the engine runs
smoothly – the cutting tool must not
rotate.
40
FS 80, FS 80 R, FS 85, FS 85 R
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Trimmer Manuals, Trimmer Manuals |
|---|---|
| Tags | STIHL FS 80, STIHL FS 85 |
| 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 |
(1 votes, average: 5 out of 5)
Lawn and Garden readers have rated STIHL FS 80 85 Trimmer Owners Manual 5.0 out of 5.0 based on 1 product reviews. we love our stihl weedeaters we have two of them they start great and do the job we need them to do . I bought the f85 when they came out in our area and stil have it its the only one that I will use