9-2-3PILOT SYSTEM
1)Remove pilot jet (5) using a suitable tool while taking care not t o damage it. 2)Detachpilotscrew (6) andspring(7).
In reassembly;
1)Clamp pilot jet securely, otherwise fuel leaks, causing engine failures.
2)If the tapered portion of pilot screw is deformed, replace it with new one. Avoid clamping it too tightly.
9-2-4MAIN SYSTEM
1)Detach main jet holder (23), and remove float chamber body (20).
2)Detach main jet (22) from main jet holder ( 2 3 ) .
3)Removemainnozzle(2)fromcarburetormainbody. In reassembly;
1)Clamp main jet to main jet holder securely, otherwise the fuel mixutre is too rich, and an engine disorder may result.
2)Tighten main jet holder toa clamping torque of
9-2-5FLOATSYSTEM
After pulling out float pin (1 8), detach float( 1 7) and needle valve (4).
In reassembly;
When replacing needle valve, replace it together withvalve seat without fail.
CAUTION: AVOID USINGA DRILL OR A WIRE WHEN CLEANING JETS, OTHERWISE THE ORIFICEMAY BE DAMAGED. CAUSING UNFAVORABLE EFFECTSTO FUEL FLOW. US€ COMPRESSEDAIR WITHOUT FAIL.
9-3 ADJUSTMENT
1)Adjustpilotscrew
once. Avoid clamping pilot screw excessively, otherwise needle point may broken.
2)Turnthrottletopscrew clockwiseuntilthespecifiedidlingspeed of 1,200rpm is obtained. If thisspeedexceeds 1,20Orpm, turn throttle top screw
3)Make final adjustments with air cleaner mounted and also engine at normal operating temperature.
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