Yamaha TMAX 2020 Service Manual

8-106ELECTRICAL COMPONENTSb. Start the engine and let it run at approxi-mately 5000 r/min.c. Measure the rectifier/regulator input volt-age.EAS30573CHECKING THE FUEL SENDER1. Remove:• Fuel pump(from the fuel tank)Refer to “FUEL TANK” on page 7-1.2. Check:• Fuel sender resistanceOut of specification  Replace the fuelpump.a. Connect the digital circuit tester () to thefuel pump terminals as shown.b. Move the fuel sender float to empty fueltank position “3” and full fuel tank position“4” level position.c. Measure the fuel sender resistance.3. Install:• Fuel pumpRefer to “FUEL TANK” on page 7-1.EAS31557CHECKING THE FUEL METER/FUEL LEVELWARNING INDICATORThis model is equipped with a self-diagnosisdevice for the fuel level detection circuit.1. Check:• Fuel meter/fuel level warning indicator “1”(Push the ON/start switch.)Fuel meter/fuel level warning indicator comeson for a few seconds, then goes off  Fuelmeter/fuel level warning indicator is OK.Fuel meter/fuel level warning indicator doesnot come on  Replace the meter assembly.Fuel meter/fuel level warning indicator flash-es eight times, then goes off for 3 seconds ina repeated cycle (malfunction detected in fuelsender)  Replace the fuel pump assembly.EAS30577CHECKING THE RADIATOR FAN MOTOR1. Check:• Radiator fan motorFaulty/rough movement  Replace.a. Disconnect the radiator fan motor couplerfrom the wire harness.b. Connect the battery (DC 12 V) as shown.Sender unit resistance (full)10.0–14.0 Sender unit resistance (empty)267.0–273.0 Digital circuit tester (CD732)90890-03243Model 88 Multimeter withtachometerYU-A1927• Positive tester probe Green “1”• Negative tester probe Black “2”341