Service manual

2.4 Carburetor dismantle & inspection:
1. dismantle
ò Remove:-carburetor assembly, pipes,
cables and wires
ò Remove:- high-tension wire
2.adjustment
there are two screws might be adjusted to
tuning the engine intake mixture.
ò 1
st
is the stop screw: to adjust the engine
idle speed, recommended idle speed is
1600 to 1800 rpm.
ò 2
nd
is the air screw to adjust the air/fuel
ratio.
3.Auto by-start function check
the carburetor is equipped with auto
by-start to improve the engine cold start, it
shall be warm after the engine has been
starting for 5 minutes.
4. Float chamber function check
fuel level is controlled by float assembly,
and stopped by valve set. Whenever there
is any flooded fuel leaks, check if there is
any dirty element or valve set is worn out.
5.Whenever the carburetor is exploded, be
careful to install all the parts properly to the
original sequence.