Quote:
Originally Posted by scottyb
Set the digital voltmeter to 20VDC & check the battery state of charge voltage before the test. ie: 12.84 v or whatever. Then start the motor and recheck battery voltage with the motor running above idle speed. Voltage will increase with generator working.
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Like Scotty said......You should read 14.5 to 15.5 volts as rpms encrease. Your stock Yamaha voltage regulator is adjustable. Take the cap off, the is a screw and jam nut...loosen jam nut and turn screw in (to increase) or out. Make shure you put the cap on and recheck voltage readings, they can change.