Rectifier circuit check

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

Disconnect the regulator/rectifier lead connector [A].

Brown Lead Terminal [A] White/Red Lead Terminal [B] Black Lead Terminal [C] Yellow 1 Lead Terminal [D] Yellow 2 Lead Terminal [E] Yellow 3 Lead Terminal [F]

ELECTRICAL SYSTEM

Charging System

• Connect the hand tester to the regulator/rectifier as shown in the table, and measure the resistance of the respective diodes in both directions, in the sequence in the table.

•The measured resistance should be small in one direc­tion and 10 or more times in the other direction. If the measured resistance of any of the two wires (White/Red or Yellow) is small or large in both directions, the rectifier is damaged; therefore, replace the regulator/rectifier.

Rectifier Circuit Inspection

1 2 3 4 5 6 7 8 9 10 11 12	Connecting terminal	Standard	Tester range
Tester positive (+) terminal	Tester negative (–) terminal
Y1	W/R	OO	× 10 0 or × 100 0
Y2
Y3
Y1	BK	Approximately 1/2 of the entire graduation
Y2
Y3
W/R	Y1
Y2
Y3
BK	Y1	OO
Y2
Y3

NOTE

○The actual resistance measurement varies with the tester used and the individual diodes, Generally speak­ing, it is acceptable if the tester’s indicator swings approximately halfway.