What causes a stator to go bad?
To answer why stators fail, it is because the coating on the windings breaks down, usually because of heat, causing a short which can also burn the fine wire of the winding in two at the short causing an open circuit. The way to prevent failures is to prevent the heat.
Will a bad stator cause no start?
Can a bad stator cause no spark? The stator coil generates the power for the spark plug and other accessories on small engines Without a stator there would be no spark at all, meaning the engine won’t run. While a stator is dying, it can produce a weak spark, causing the engine to miss or run poorly.
What causes a stator to fail?
How many volts should a stator put out?
For example a 32-amp stator should put out 18 volts AC (VAC) per each 1000-RPM. At 2000 it should be 36 VAC (18×2). At 3000 RPM it should be 54 VAC (18 X 3).
How many volts should a motorcycle stator put out?
It should read anything above 12.0v but under 13.2v but ideally between 12.5 – 12.9 DC volts is required. Any less than this, you may start to encounter starting problems as the Battery will not have enough juice to turn the big twin motor over.
Can a stator be repaired?
Stator Replacement In many cases a new stator is the safest, most cost-effective solution for an electrical system breakdown. Because repairing stators can be an intricate and detail-intensive process, replacing failed stators with an entirely new part can be a much easier route, depending on the specific motorcycle.
How to test the electrical system on a Yamaha 650?
The only way to test them properly is to remove the boots and get to the end of the wire. You can try jamming the point of the meter probes into the end, but due to the dirt and metal dust, it often does NOT give a solid connection / reading.
What’s the best way to test a stator?
Set your multimeter to Ohms. Put the negative lead on the engine’s ground and the positive lead on each wires of the stator’s connector one by one. You shouldn’t get a reading at all.
How can I tell if my stator connector is defective?
Ohms Test. You will need a multimeter set to Ohms for this test. Test every lead of the stator’s connector and note the readings. The reading of each combination should be the same (test leads 1-2, 2-3, and 3-1). If they are different, your stator is defective.
How much AC does a Yamaha 650 need?
You should have 30 to 50 volts AC depending on how good a battery and starter you have. 2. Check the pulser coil output. It’s job is to tell the cdi when to fire the energy stored in the capacitor.