How do you test an alternator on a Harley Davidson?
The alternator’s performance may be tested with a digital multimeter for both a grounded stator as well as correct AC output. Turn off the motorcycle’s ignition. Disconnect the plug leading from the voltage regulator to the crankcase. Measure the resistance between one hole on the stator plug and a known ground point on the motorcycle.
How do you check the voltage regulator on a Harley Davidson?
Checking its function involves the use of a digital multimeter and a trouble light. Unplug the regulator from the engine crankcase. Touch a trouble light to a known ground on the motorcycle and to the pins in the regulator plug, one at a time. The regulator is bad if the trouble light comes on.
Where is the alternator located on a motorcycle?
Located within the primary chaincase on the left side of the engine, the alternator is difficult to visually inspect. Fortunately, it is quite simple to troubleshoot. The alternator’s performance may be tested with a digital multimeter for both a grounded stator as well as correct AC output. Turn off the motorcycle’s ignition.
What should the charging voltage be on a Harley stator?
You can use 13 as a good all around battery voltage. That is a good healthy battery staying charged just above 12 volts. Example only: Let’s say the stator is rated for 10 amps x 13-volt battery: 10 x 13=130 watt charging system. So you have a 130-watt charging system in this example.
The alternator’s performance may be tested with a digital multimeter for both a grounded stator as well as correct AC output. Turn off the motorcycle’s ignition. Disconnect the plug leading from the voltage regulator to the crankcase. Measure the resistance between one hole on the stator plug and a known ground point on the motorcycle.
How to check the AC output on a Harley Davidson?
AC Output Check: 1 Unplug the regulator plug from the stator. 2 Start motorcycle and change Voltmeter to AC volts. 3 Probe both stator wires with your meter leads. 4 The motorcycle should be putting out approximately 18-20 ACV per 1,000 rpm. (Reading will vary depending on system, check service manual specifications) 5 Generic Specs:
How to test the battery on a Harley Davidson?
Place your multi-meter positive lead on each AC output wire. Place your multi-meter negative lead on the battery Charge wire. The meter should read voltage typically around.5 volts. Next, switch your multi-meter leads putting the negative lead on the AC output wires and the positive lead on the Battery Charge Wire.
How can I tell if my alternator is charging?
The alternator is charging if the battery voltage stays above 13 volts with the engine at 2,000 rpm and all accessories on. Check the alternator gauge. If you have a volt/amp gauge, it will read the alternator output for you.