Operation – Zenoah G3800AVS User Manual
Page 13
7. Operation
Keep clear of the saw chain as it will start
rotatIng upon starting of engine.
■
CHECKING OIL SUPPLY
After starting the engine, run the chain at medium
speed and see if chain oil is scattered off as shown
in the figure. (F12)
(1) Chain oil
■
ADJUSTING CARBURETOR (F14)
The carburetor on your unit has been factory
adjusted, but may require fine tuning due to
change in operating conditions.
Before adjusting the carburetor, make sure that
provided are clean air/fuel filters and fresh,
properly mixed fuel.
When adjusting, take the following steps:
Be sure to adjust the carburetor with the bar chain
attached.
1. H and L needles are restricted within the number
of turn as shown below.
H needle –1/4
L needle fixed
2. Start engine and allow it to warm up in low
speed for a few minutes.
3. Turn idle adjusting screw (T) counter-clockwise
so that saw chain does not turn. If idling speed is
too slow, turn the screw clockwise.
4. Make a test cut adjust the H needle for best
cutting power, not for maximum speed.
(1) L needle
(2) H needle
(3) Idle adjusting screw
NOTE
WARNING
F14
F12
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13
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