What condition is the battery in? A generator will only put out enough voltage to push a charge into the battery. A discharged battery will accept a charge at a very low voltage until it begins to recharge, and the voltage will gradually rise until it reaches the voltage regulator setting. That's usually 14.5-14.7 volts AGAINST A FULLY CHARGED BATTERY! You also need an accurate ammeter to check out a charging system. Ths dash ammeter IS NOT, and never will be sufficient to check generator output. You MUST know volts and amps, plus the state of charge of the battery, to check a charging system properly.

Connect a jumper wire from the generator F terminal to ground. That will put the generator into full voltage output. DO NOT rev the engine much above a fast idle with the field terminal grounded.

Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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