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8-2-2 CHOKE SYSTEM
(1) Remove the phillips screw (6) and choke valve (7), and pull out the choke shaft (8).
(2) When reassembling the choke shaft, make sure that the cutout in the choke valve faces the pilot air
jet. Meantime, when reassembling set the rings (9) and (10) at the right position.
8-2-3 PILOT SYSTEM
(1) Remove the pilot jet (11), using correct tool to avoid damage to it.
(2) Reassembly
Tighten the pilot jet securely. Otherwise, the fuel may leak, causing engine malfunction.
8-2-4 MAIN SYSTEM
(1) Remove the bolt (12) and take out float chamber body (13).
(2) From the body (14) remove the main jet (16) and guide holder. And then remove the main nozzle (15).
(3) Reassembly
a) Fasten the main jet and main nozzle securely to the body. Otherwise, the fuel may become too rich
and cause engine malfunction.
b) The bolt (12) tightening torque is 90 kg-cm. Be sure to set the gasket (19) and washer (18) for
chamber (13).
8-2-5 FLOAT SYSTEM
(1) Pull out the float pin (20) and remove the float (21) and then remove the clip (22) and needle valve
(23). If the needle valve need to be replaced, replace it with rubber needle.
(2) When removing the needle valve and float, gently tap the reverse side using the rod more slender
than the float pin and remove, since the float pin is calked to the carburetor body.
CAUTION :
When cleaning the jets, use neither a drill nor a wire (because of possible damage of the
orifice which will adversely affect fuel flow). Be sure to use compressed air to blow them
clean.
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