15
Adjust the height of float
Measure the height of float by height gauge
first
Height of float D：17±0.5mm
A：Surface of end of float chamber
B：Needle of float
C：Float
Note: No pushing to needle is allowed when
Measure the float height.
When height adjustment is needed, slowly
change the angle of float arm, until end of
float arm precisely touched needle of float,
and float height could be also adjusted on
height gauge.
Installation of carburetor
After carburetor installed, adjust the
free moving distance of throttle lever
by adjustment device on throttle cable.
Free moving distance of throttle lever:
2～3mm
Adjustment for idling speed
Start engine and raise
its temperature to working condition, and adjust
throttle screw for raising idling speed to 1500±150r/min.
Repeatedly operate throttle lever for checking steady
acceleration and deceleration of engine.
Adjustment screw of idling speed
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