5. FUEL SYSTEM PEOPLE 125/150 5 5 FUEL SYSTEM SERVICE INFORMATION ................................................................. 5-2 TROUBLESHOOTING......................................................................... 5-3 CARBURETOR REMOVAL................................................................ 5-4 AUTO BYSTARTER ............................................................................. 5-4 AIR CUT-OFF VALVE......................................................................... 5-6 VACUUM CHAMBER.......................................................................... 5-6 FLOAT CHAMBER .............................................................................. 5-7 CARBURETOR INSTALLATION.................................................... 5-10 FUEL TANK......................................................................................... 5-11 FUEL UNIT .......................................................................................... 5-11 AUTO FUEL VALVE.......................................................................... 5-12 AIR CLEANER .................................................................................... 5-13 5-0