Standard Setting - Stihl GS 461 Manual

Setting idle speed
Set idle speed with fitted guide bar
and cut-off chain.
For the short time it takes to set the
idle speed, the machine can be
used without water supply. During
the time it takes to set the idle
speed, the guide bar and cut-off
chain must be sufficiently coated
with STIHL multispray
– The cut-off chain must not run dry,
repeat the STIHL multispray
process if necessary
1. Turn the
low speed adjusting screw L
left or right to set the highest
speed
If the highest set speed is between
2900 1/min and 3100 1/min,
continue with step 3.
If the highest set speed is outside
of the speed range of 2900 1/min
and 3100 1/min, continue with
step 2.
2. With the
idle speed screw LA
set the speed to 3000 rpm
and start again with
step 1
3. With the low speed adjusting
screw L
set the speed to 2500 rpm
4. Unscrew high speed adjustment
screwH
clockwise
by 1 1/2 revolution out of
its seat
– Continue with "Securing the
limiter caps"
GS 461
: Insert a suitable punch through
the holes (arrow) of the bushing
and press the limiter caps fully
home
Now the basic setting of the high
speed adjusting screw H and the
low speed adjusting screw L has
been established and secured.

10.5.3 Standard setting

1
The limiter caps (1) must not be
removed when making the standard
setting.
To avoid problems, the following
steps must be performed for all
settings:
– Troubleshooting, b 3.6
– Check chain tension, adjust if
necessary
– Examine the spark arresting
screen (if installed); clean or
replace it if necessary, b 3.7 or
b 5.1
– Check the air filter and clean or
replace if necessary, b 10.1
Standard setting
– Switch off the engine
– Carefully turn the high speed
adjusting screwH
counterclockwise as far as
possible, max
3/4 turn
– Carefully turn the low speed
adjusting screwL clockwise as far
as possible, max
3/4 turn, then back by 1/4 turn
Check running behavior:
The engine must accelerate well
when the throttle is opened and idle
smoothly.
Setting the idle speed
– Adjust to standard setting
– Let the engine warm up
1
Engine stops when idling
– Turn the idle speed screw LA
clockwise until the cut-off chain
runs as well, then
turn back by 1 1/2 turn
Cut-off chain runs when idling
– Turn the idle speed screw LA
anticlockwise until the cut-off
chain stops, then
turn back by 1 1/2 turn
75