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F14
F15
32
English
8. Operating the engine
When adjusting, take the following steps:
(1) L needle
(2) H needle
(3) Idle adjusting screw
NOTE
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
L needle 1
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 the position
where idling speed is maximum, set the needle back
a quarter (1/4) turn counterclockwise. (L needle
should be set in 1/4 turn either wise from the
standard position.)
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.
CHAIN BRAKE
This machine is equipped with an automatic brake to
stop saw chain rotation upon occurrence of kickback
during saw cutting. The brake is automatically operated
by inertial force, which acts on the weight fitted inside
the front guard.
This brake can also be operated manually with the
front guard turned down to the guide bar.
To release the brake, pull up the front guard toward the
front handle till a "click" sound is heard. (F15)
IMPORTANT
[Caution]
Be sure to confirm brake operation during daily
inspection.
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4
4
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