G3801/G3801EZ
G
B
GB-9
1. Stop engine and screw L needle until it stops. Never
force. Then set it back the initial number of turns as
shown below. H needle is restricted within the num-
ber of turn as shown below.
H needle : 1
3
/
8
±
1
/
4
L needle : 1
1
/
4
±
1
/
4
2. Start the engine and allow it to warm up in low speed
for a few minutes.
3. Turn L needle slowly clockwise to find a position
where idling speed is maximum, then set the needle
back a quarter (1/4) turn counterclockwise.
4. Turn the idle adjusting screw (T) counterclockwise
so that the saw chain does not turn. If the idling
speed is too slow, turn the screw clockwise.
5. Make a test cut and adjust the H needle for best
cutting power, not for maximum speed.
■
STOPPING THE ENGINE
1. Release the throttle lever to allow the engine to idle
for a few minutes.
2. Set the switch to the “O” (STOP) position.
Carburetor anti-freeze mechanism
Operating chain saws in temperatures of 0 – 5°C at times of
high humidity may result in ice forming within the carburetor,
and this in turn may cause the output power of the engine to
be reduced or for the engine to fail to operate smoothly.
This product has accordingly been designed with a ventila-
tion hatch on the right side of the surface of the cylinder cover
to allow warm air to be supplied to the engine and to thereby
prevent icing from occurring.
Under normal circumstances the product should be used in
the normal operating mode, i.e., in the mode to which it is set
at the time of shipment. However when the possibility exists
that icing may occur, the unit should be set to operate in the
anti-freeze mode before use. Please switch between modes
in the repair specialty store.
Continuing to use the product in the anti-freeze
mode even when temperatures have risen and
returned to normal, may result in the engine
failing to start properly or in the engine failing
to operate at its normal speed, and for this
reason you should always be sure to return
the unit to the normal operating mode if there
is no danger of icing occurring.
Switch
Normal operating mode
Anti-freeze mode
Cylinder cover
“Sunshine” mark
“Snow” mark
■
HOW TO SWITCH BETWEEN OPERATING MODES
1. Set the switch to the “O” position to stop the engine.
2. Remove the air cleaner cover, remove the air filter,
and then remove the choke knob from the cylinder
cover.
3. Loosen the screws holding the cylinder cover in
place (i.e., the three screws on the inside and the
one screw on the outside of the cover), and then
remove the cylinder cover.
4. Press with your finger down on the icing cap located
on the right-hand side of the cylinder cover to re-
move the icing cap.
5. Adjust the icing cap so that the ‘snow’ mark faces
upwards and then return it to its original position in
the cylinder cover.
6. Fix the cylinder cover back into its original position,
and then fix all other parts back into their proper
positions.
Choke knob
Cylinder cover
Icing cap
