Stihl FS 240 - Adjusting Screws, Carburetor Without M-Tronic

102 FS 240 C, FS 260 C, FS 360 C, FS 410 C, FS 460 C-M
: Set choke lever (1) to
position }; the cam on the
lever (2) must actuate the
microswitch (arrow)
– clicking noise
– Reassemble remaining parts in
reverse order
11.4.6 Adjusting screws,
carburetor without M-
Tronic
Grommet not shown for a better
view.
There are three adjusting screws on
the carburetor:
H = High speed adjusting
screw (1)
L = Low speed adjusting
screw (2)
LA = Idle speed adjusting screw (3)
If the carburetor setting can no
longer be adjusted, this may also be
due to the adjusting screws.
2
5904RA279 TG
1
5904RA378 TG
3
21
The high speed screw H and the low
speed screw L have a special
hexagonal head and can only be
adjusted with screwdriver
5910 890 2307
– no limiter caps are used.
– Remove the carburetor, b 11.3
– See also Troubleshooting on the
carburetor, b 3.6
Low speed screw
: Unscrew low speed
screw L (arrow) with
screwdriver (1) 5910 890 2307
: Examine the tip (arrow) for signs
of damage or wear. Fit a new low
speed screw L (1) if necessary
– Turn the low speed screw L in as
far as possible
– Continue with the high speed
screw H
5904RA379 TG
1
5904RA380 TG
1
High speed screw
: Unscrew high speed
screw H (arrow) with
screwdriver (1) 5910 890 2307
: Examine the tip (arrow) for signs
of damage or wear. Fit a new high
speed screw H (1) if necessary
– Turn the high speed screw H in
as far as possible
– Make the basic setting, b 11.6.1
5904RA381 TG
1
5904RA382 TG
1