5. FUEL SYSTEM MXU 500 IRS SERVICE INFORMATION GENERAL INSTRUCTIONS Gasoline is very dangerous. When working with gasoline, keep sparks and flames away from the working area. Gasoline is extremely flammable and is explosive under certain conditions. Be sure to work in a well-ventilated area. · Do not bend or twist control cables. Damaged control cables will not operate smoothly. · When disassembling fuel system parts, note the locations of O-rings. Replace them with new ones during reassembly. · Before float chamber disassembly, loosen the drain screw to drain the residual gasoline into a clean container. · After the carburetor is removed, plug the intake manifold side with a clean shop towel to prevent foreign matters from entering. · When cleaning the carburetor air and fuel jets, the O-rings and diaphragm must be removed first to avoid damage. Then, clean with compressed air. · When the machine is not used for over one month, drain the residual gasoline from the float chamber to avoid erratic idling and clogged slow jet due to deteriorated fuel. SPECIFICATIONS Item Standard Type KYMCO CVK Mark LFE9-IT (ON ROAD) LFE9-US(OFF ROAD) Bore size 38 mm Float level 38cc Main jet No. ON ROAD #128 OFF ROAD #126 Slow jet No. #40 BY-ST jet No. #55 Idle speed 1500100 rpm Throttle grip free play 35 mm Pilot screw opening 21/2 5-2