Yamaha TZR50 '03 Service Manual page 214

3. Charging voltage
• Connect the engine tachometer to the spark plug
cable
• Connect the pocket tester (DC, 20V) to the battery
(+) probe of tester
(-) probe of tester
• Start the engine up and rev. up to about 3.000 r/min.
• Check the charge voltage
• Charge voltage:
14.0 V at 5000 rpm
4. Resistance of the stator coil.
• Disconnect the stator coil coupler from the connector.
• Connect the pocket tester (Ω x 1 ) to the stator coil.
Stator coil:
(+) probe of tester
(-) probe of tester
CHARGING SYSTEM
(+) terminal of the battery
(-) terminal of the battery
DOES NOT MATCH
SPECIFICATIONS
Yellow-black terminal
White terminal
MATCHES SPECIFICATION
Replace the battery
8-15
ELEC