2007 Yamaha Apex Factory Service Manual, Page 271Get this manual

2007 Yamaha Apex Factory Service Manual, Page 271

SIGNAL SYSTEM FUEL METER ANDOR WARNING LIGHT DO NOT OPERATE Check the warning light bulbRefer to "LIGHTING SYSTEM"OK NO CONTINUITY
Replace andor charge the batteryRefer to "BATTERY INSPECTION" in CHAPTER 2Replace the stator coil and pickup coil assembly
Check the stator coil and pickup coilOK OUT OF SPECIFICATION Check the main switchRefer to "IGNITION SYSTEM"OK FAULTY Replace
the main switch Check the fuel senderOK FAULTY Replace the fuel sender Check the main relayRefer to "IGNITION SYSTEM"OK FAULTY