6.
CARBURETOR
ADJUSTMENT
Since the carburetor has carefully been adjusted at shop before shipment, avoid adjusting it unless absolutely necessary.
If
adjustment are needed, refer to the following.
r
1)
Idle adjustment
(See
Fig.
?8)
EC02-A, EC02-R
Adjust idling revolution with throttle stop screw,
If
turn throttle stop screw clockwise, revolution will increase. If turn
it counter-clockwise, revolution will reduce.
CUATION: DO NOT IDLE UNDER
2,800r.p.m.
2)
Fuel
flow
adjustment
(See
Fig.
18)
EC02-R
a)
At low speed (at the small opening of the throttle)
When fuel
is
too
RICH,
turn the low speed fuel adjusting screw to the
LEFT.
When it is too
LEAN,
turn low speed fuel
adjusting screw
to
the
RIGHT.
b)
At high speed (at the large opening
of
the throttle)
When fuel
is
too
RICH,
turn high fuel adjusting screw
to
the
RIGHT.
When it is too
LEAN,
turn high speed fuel adjust-
ing
screw
to
the
LEFT.
CAUTION: LOW SPEED FUEL ADJUSTING SCREW
IS
FOR ADJUSTMENT
OF
AIR AMOUNT,
SO
IT
IS
NOTED
THAT THE DIRECTION
OF
TURNING SCREW
IS
REVERSE
TO
THAT OF HIGH SPEED FUEL ADJUST-
ING SCREW.
i
THROTTLE STOP SCREW
LOW SPEED FUEL ADJUSTING SCREW
HIGH SPEED
FUEL
ADJUSTING SCREW
Fig.
18
/"
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10
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