How do you diagnose electrical problems on a motorcycle?
Touch the positive lead of the multimeter to the positive diode on the rectifier/regulator. Next, test all the stator inputs on rectifier/regulator with the negative multimeter lead. Ensure that the meter isn’t reading while you test the positive diode, basically you should get no reaction on the multimeter.
How do you check a motorcycle circuit?
First measure the resistance between the primary wire that comes from the CDI box and the ground or ground wire. The resistance should measure around . 5 to 1.5 Ohms. If that checks out, you can then measure the resistance between the secondary wire (plug wire), w hich should measure in the thousands.
How do you check a motorcycle wire with a multimeter?
To test it, connect one meter lead to the red wire and the other to either the green or yellow wire, depending on which switch position you want to check. Below is a switch connection diagram for this switch that I’ve drawn for reference. So that’s it. You should be able to test most of the switches on your bike.
How many volts should a motorcycle stator put out?
The output from the stator on most modern bikes is three phase (hence the 3 wires) alternating current at a peak voltage well over the 12-14V DC voltage that your electrical system requres.
How do I know if CDI is not working?
Symptoms could include misfiring, dead cylinders, backfiring, bizarre tach behavior, and countless other things related to how your engine’s running. The problem may get worse as the bike warms up. It might not even hold low revs at all.
How do you test a motorcycle neutral switch?
Assuming the switch switches the single terminal to ground you can test it with a multimeter/ohmmeter/continuity tester. Test between the switch’s terminal and the engine casing (ground). It should connect when and only when in neutral. You could remove it for testing but your oil will probably all drain out.
How do I know if my motorcycle fuse is blown?
If a fuse is blown, you need to replace the fuse of the same rating. To check whether the fuse is blown or not, all you need to do is see the metal strip inside the fuse. The U-shaped metal strip will be broken if the fuse is blown.
Does a stator produce AC or DC?
The stator is the coil of wire housed inside the engine case. A magnet on a shaft spins within the stator, creating alternating current (AC). That current travels along fairly heavy gauge wire through the case and into the rectifier/regulator which converts it to DC power, and at a consistent output.