Table 2 Stator Coil Resistance

Vo lt a g e

Charging System

ELECTRICAL SYSTEM

Te s t e r Range	Connectings	Reading @4 000 rpm
Tester (+) to	Tester (–) to
250 V AC	One yellow lead	Another yellow lead	About 60 V

• If the output voltage shows the value in the table 1, the
alternator operates properly and the regulator/rectifier is
damaged. A much lower reading than that given in the
table indicates that the alternator is defective.

• Check the stator coil resistance as follows:
OStop the engine.

OConnect the hand tester as shown in the table 2. ONote the readings (total 3 measurements).

Test e r Range	Connectings	Reading
Tester (+) to	Tester (–) to
× 10	One yellow lead (Connector 3)	Another yellow lead (Connector 3)	0.37 ~0.46 0

• If there is more resistance than shown in the table, or no meter reading (infinity) for any two leads, the stator has an open lead and must be replaced. Much less than this resistance means the stator is shorted, and must be replaced.

• Using the highest resistance range of the hand tester, measure the resistance between each of the yellow leads and chassis ground. Any hand tester reading less than infinity (°°) indicates a short, necessitating stator replace­ment.

• If the stator coil has normal resistance, but the voltage check shows the alternator to be defective; then the rotor magnets have probably weakened, and the rotor must be replaced.

Regulator/Rectifier Removal

• Remove the left side cover.

• Remove the coolant reserve tank.

• Disconnect the regulator/rectifier connector [A].

• Unscrew two mounting bolts [B] and remove the regula­tor/rectifier [C] from the battery case.

Regulator/Rectifier Output Voltage Inspection

• Check the battery condition (see Battery section).

• Warm up the engine to obtain actual alternator operating conditions.

• Remove the right side cover (see Side Cover Removal in the Frame chapter).

Дата добавления: 2014-12-23