Daelim S4 50cc Service Manual - Mojo

FUEL SYSTEMVACUUM PISTONJET NIDDLE COMPINSPECTION● Check the jet needle for wear and replace ifnecessary.● Check the vacuum piston for damage and replace ifnecessary.● Check the diaphragm for damage, pin holes, bendsand replace if necessary.SPRING SEATNOTE•Check the diaphragm adequately for crack in thewrinkled and bent area.● Loosen 3 screws from float chamber set.ACCELERATION PUMPFLOAT CHAMBER SETFLOAT● Loosen screw at float pin.● Disassemble float pin, float, float valve.CAUTION•Do not damage the jets because it made of softmaterial and also, do not use the wire whencleaning the air and fuel passage.•Otherwise, it will damage to the carburetor body,eventually it will be effect the engine. Namely it iscause of bad condition of engine.FLOAT PINFLOAT VALVE● Check the float and valve seat for scores, scratches,clogging and damage replace if necessary.● Check the float valve operation.