4-10 FUEL AND LUBRICATION SYSTEM
FLOAT HEIGHT ADJUSTMENT
• To check the float height, invert the carburetor body, with the
float arm kept free, measure the height
A while float arm is
just in contact with needle valve by using calipers.
$ Float height
A: 17.1 ± 1.0 mm
% 09900-20102: Venier calipers
NOTE:
This data is approximate values for reference purpose.
• Bend the tongue
1 as necessary to bring the height
A to this
value.
FUEL LEVEL ADJUSTMENT
• Install the special tool to the carburetor overflow outlet
2.
• Loosen the drain plug
3.
% 09913-10760: Fuel level gauge
• Adjust the carburetor to the proper angle holding the body
with a vice or the like.
• Fill gasoline in the carburetor.
• Remove air completely from the fuel level gauge.
• With the level gauge held vertical, lower the gauge slowly and
align the datum point with the gauge graduation. (See the
illustration.)
• Wait until the fuel level stabilizes.
• Determine the zero point on the gauge graduation and after
waiting again for level stabilization, measure the height
B
from the datum plane.
$ Fuel level
B: 2.0 ± 1.0 mm below the datum point
!
NOTE:
This data is approximate values for reference purpose.
Carburetor
set position
Lateral direction: Horizontal
Longitudinal direction: See the illustration.
This inspection must be performed in an area well
ventilated, away from fire or sparks since gasoline, an
explosive fluid, is used in this operation.
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