So I was riding my DRZ home from work, just filled up gas and on my way. Then all of a sudden it started to chug. (Almost similar to running out of fuel). I chopped the throttle and it returned to normal. I noticed my speedometer went dim. I gave it some gas and it started to chug again. I feathered the throttle and noticed if I gave it approximately more that 45% throttle it would chug. So I shifted up a gear and continued in a higher gear at low RPMs. I continued as far as I could until it would chug then I would downshift and continue until i got into first gear and it died and wouldn't go anymore. The only thing on at this point was a very dim headlight. Everything else was dead. No tail light, no speedo, and no turn signals. I tried to bump start it. It worked for a bit and then died again. Had my bike trucked home, unloaded the bike and it fired right up. Put it on a trickle charger over night. Road it for a few days fine and then boom. The same thing happened.
I'm pretty sure that it has to be an issue with my charging system and I'm running my bike 100% off of battery power. I went and read charging system diagnosis in the FAQs and ordered up a multimeter. I attempted last night to find out where my issue is coming from. I'm pretty sure its my stator but before I jump to conclusions and order up expensive parts I wanted to see If my procedure was done right because to be honest that guide was pretty hard for me to follow as I've never tinkered with electronics at all before.
So the first thing I went to test was my battery. I set my multimeter to DC function under the 20 setting.
Battery by its self with the bike off = 13V
Battery with lights on = 12.63V and the longer the lights were on it would go down. I let it go down to 12.58V and I started my bike up.
Battery with bike on = 12.58V
Battery with bike revving. (I guessed where 3k RPM is) = 12.58V and it wouldn't go up at all.
Things to note is that battery is only a couple of months old. My bike does not sit. I ride it everyday. (This morning it read 13.38V since i left it on the trickle over night)
Now I went to test the stator. This is the part I'm not really sure I'f I did it correctly or not. So what I did was unplug the yellow 3 wire plug from the Regulator/Rectifier and then set my multimeter to continuity mode. I put the positive probe on each of the yellow wires and touched the negative probe on the frame. There was no beeping on all 3 test. Then I went and touched Y1 to Y2, Y2, to Y3, and then Y3 to Y1. I had a beep with all 3 of those test. After that I set my multimeter to ohms to measure resistance. I put the dial on 200 ohms and touched the probes at Y1 to Y2, Y2, to Y3, and then Y3 to Y1. My multimeter showed about 1.2 ohms on all three readings. One displayed 1.4 after I left it there longer. *Picture attachment is displaying this* (Could have had a better connection with the probe). This is the main part I was not sure about. I was not sure if I have the meter set to the correct setting. My meter for some reason always displays 1 unless it touches wires in this ohms setting. If i moved my meter to something like 20k it would show "0"s. I'm pretty sure that means 20,000 ohms though. After resistance I set my meter to 200 under AC to check my stators Voltage. I checked the Y1 to Y2, Y2 to Y3, Y3 to Y1 with the bike on. All of those 3 test displayed about 30v AC at idle and would quickly jump to 65-70v with some revving.
The last thing I tested was the R/R, Rectifier and Regulator. I removed the R/R from the bike. Turned my meter to the diode function. I stuck the positive probe into the positive output and then proceeded to touch all 3 stator inputs with the other probe. I got no readings on all 3. Then I reversed the bias and got a reading on all 3 of them of about .622 I believe. Then I checked the negative diode board. Stuck the negative probe into the negative output and proceeded to test all 3 stator inputs. Got nothing. Reversed the bias and checked and got all 3 readings of about .622
Looked something like this.
Test 1: 0 , 0 , 0
Test 2: 622, 622, 622 Test 3: 0 , 0 , 0 Test 4: 622, 622, 622
Sorry for the novel I just typed..