Daelim S4 50cc Service Manual - Mojo

FUEL SYSTEMINSULATORCARBURETOR INSULATORDIASSEMBLY● Disassemble luggage.● Disassemble carburetor.● Disassemble floating pressure fuel pump.● Disassemble 2 fixed nuts of inlet pipe.● Disassemble carburetor insulator.● Disassemble fixed band of carburetor insulator.INLET PIPEINSPECTION● Check abrasion or damage of carburetor insulator.● Check abrasion or damage of inlet pipe o-riing.● Install in the reverse order of removal.INSULATORINLET PIPEPILOT SCREW ADJUSTMENTUSING THE EMISSION ANALYZER(CO,HC)● Open the seat and remove the carburetormaintenance cover. Turn the pilot screw clockwise until it seats lightly,then back it out to the specification given.(21/2) up the engine to operating temperature(60°C). Adjust the idle speed with the throttle stop screw.PILOT SCREWIDLE SPEED: 1700 °±100 RPMMUFFLERCO ANALYZERNOTE•Before adjustment the pilot screw, check thefollowing items.•Fuel system electrical system for troubling.•Do not force the pilot screw against its seat. Theseat will be damaged.•The spark plug for cleaning and gap adjusting.•Valve clearance for adjusting.•Emission analyzer for correction.•Exhaust gas contains poisonous substance, so donot•adjusting in a closed or poorly ventilated area.