HondaCB650

Now it would be interesting to compare that to the red/white cable from the regulator vs. battery voltage, too. Best both voltages at idle and ~3000rpm So I checked the red/white and black (small rectifier connecter) wires again. I also did voltage drop tests (red meter lead to battery positive--bl...

Finally got to do some more testing on my cb650 charging issue this weekend. Well, I bit the bullet and purchased a "Ricks" regulator off ebay. Guess what? Still no charging :( I did do some more troubleshooting. I followed wiring diagram (regulator small connector- black wire) and checked...

OK, I bought a new battery. I wanted to be sure it was not the battery not taking a charge. Anyway, I get half a Volt DC less than battery voltage at black to green wire (small rectifier connector). Also, I tested AC volts at the yellow stator wires again (connected to regulator). AC volts are 10 an...

Thank you Volker. I will try a few more things. I am going to get this working somehow-- some way! Then, I will post what fixed the charging problem to possibly help someone else in the future.

Thank your for helping Volker. Sorry for late reply (I am an "essential employee" and have been working too much) Plus, I did learn how to post forum pics now :) I finally measured DC voltage off stator plug black and white wires at idle (every thing connected -headlight on). I only get 10...

Finally got chance to test stator yellow wires for AC volts again after sending power on black and white wires from battery-- not hooked to regulator. I do have 10 volts AC on each yellow pair at idle and it goes up with rpms. Thinking I will try new regulator next??? Also I found this info from the...

So, the AC voltage test on yellow wires at stator plug will not work (disconnected) because the black and white wires need to send voltage (from regulator) to stator brushes. Hope I am thinking correctly on this. Thank you for the info Volker. I saw youtube videos of folks testing yellow leads for A...

Here is the stator plug. I only get less than one volt AC on yellow wires with bike running.

I have researched and I am still confused about a charging issue. All ohm tests pass on stator wires, rotor passes ohm tests, reg-rectifier passes diode tests. My questions: Is it possible to test for AC voltage on the yellow stator wires while disconnected at plug from regulator-rectifier? Must the...

@ Harvest Fields, I know this is an old post but I have the exact same problem. You wrote: "Ok. Simple problem. The bike starts and idles fine but if you hold the throttle open at say, 4-5000 rpm it has a popping ( backfire? ) this is only coming from cyl 3 and 4. put your hand over the exhaust...

Wow, thank you. My search skills must need practice. I have become a little gun shy ordering parts because Ebay says they fit-- but do not. For example, ordered carb boots and petcock that did not fit. Was able to get oem on these finally. Cleaning carbs now. I am researching as much as possible but...

Hello, old guy trying to get back on my 81 cb650c had in college :) Finding out parts are expensive and hard to find. Anyone know if this choke assembly would fit my cb650c? Ebay says it fits a 81cb750c: https://www.ebay.com/itm/Honda-CB900C-CB900-C-Custom-Choke-Cable-80-82-Motion-Pro-02-0157/292889...