2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 364Get this manual

2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 364

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ELECTRIC STARTING SYSTEM
Remove the diode from the couplerConnect the pocket tester1) to the diode terminals as shownCheck the diode for continuity as followsTester positive probe BlueRed Contin