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what does rectifier do? i think mine has failed. have ohm meter, not sure what setting to put it on. the continuity"beep" setting shows a reading, but no beep. and i am using the manual to test by.
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KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
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A Rectifier converts AC to DC, it "rectifies" it. Essentially, an alternator, generates Alternating Current (AC); the Rectifier converts the AC to Direct Current (DC), which is what kind of voltage your battery puts out, and what it needs to recharge.
A DVM (Digital Volt Meter) will typically have a diode tester, which really tests a P-N junction (the heart of all diodes, and transistors, which a computer processor chip has literally millions of, inside of it). If the reading beeps, when you connect the leads, and then reads ~0.6 V, or ~1.2 V, it typically means your P-N junction is good; if it beeps continuously, you have a short, and this is very bad for a P-N junction. If it does not beep, and gives a voltage reading, you likely have a problem: the beep means that the applied voltage did not conduct until it reached the "break-over" voltage (the key to all P-N junctions), and then it reads the voltage drop across the junction -- no beep means there was no break-over, it just conducts with the given voltage drop, limited to around 1.2 V by the testing circuit.
Go back to the Manual. Re-read the instructions on how to test the Rectifier/Regulator, to verify you are testing it properly. DVM's/diode testers did not really exist when that manual was written (they came into being around 1982, or maybe a few years earlier). Testing the Rectifier/Regulator (not only does this device rectify the AC into DC, but it also regulates/limits the voltage so that it does not go too high, damaging your electrical components, and battery -- your alternator can pump out voltages as high as 17+ Volts!) is challenging because you are not testing the individual diodes and transistors, but rather you are testing the whole circuit, which is not completely accurate. You can get an idea of whether there is a problem, but it won't tell you exactly which component within the circuit is failing, or how (short or open?). None of that really matters, though, as you cannot open the circuit and replace the failed component -- it is a sealed unit, and you must replace the whole assembly.
There are after-market sources. I found one, a few years ago, which was guaranteed never to fail -- the builder made them super-heavy-duty, capable of handling many more amps than your alternator could ever put out. If needed, I can see if I can find his web site again. They weren't as neat in appearance, as OEM, but they were built to last. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII
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i should have known that.RECTIFIER . just forgot. ive found a couple used ones on ebay. gonna remove and test again. my vom has 5 ohms settings. 2000k, 200k, 20k, 2000, 200. and the continuity/beep setting. witch of these should i use when testing a rectifier? thanks alot SGT.
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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What does the Manual say? My guess would be the continuity tester, which is the diode tester mode, most likely. This mode serves multiple purposes. The continuous beep, however, indicates a short circuit -- what you would read when connecting across a piece of copper wire. If the Manual says, "short across these leads", then that is what you should read; if the Manual says, "open across these leads", then that is what it will read when working properly. Check the Manual, and compare your readings with what it states is normal. If your readings match the Manual, then your Rectifier/Regulator is good -- look at other components within the charging system. Report back on your findings, as several folks are watching, and they may encounter similar problems -- your experience may help them in the future. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII
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i now realize i have a regulator/rectifier in one. the wiring looks the same. i dont think either part of this is working. or maybe this part doesnt work with this model....im gonna look for diagnostic to this part. heres the #s if you know of quick refference. sh236a-12 1.3 shindengen . i still belive its this part. a lil more expensive than rectifier alone?
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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Administrator
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Your bike should have a separate regulator #1, and rectifier #3 in this diagram.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."
1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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tryin to determine if i can check the stator/coil without removing cover. manual shows cover removal first. and i also found 4 wiring connectors to whoknows what tucked behind starter solonoid. so who knows what else is missing. but every thing works,signals,lights,starts, just doesnt charge. wouldnt wanna put another regu/recti too find that a shorted stator or coil took the part out. this is an 8 wire recti/regu. there must be a way to trace these wires back to stator and coil.
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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This post was updated on .
spaghetti im not exactlynot sure what to do now...the 3 yellow wires danglin there go to the rectifier/regulator
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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Administrator
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You have a DOHC regulator/rectifier #3 in this diagram I will dig out a wiring diagram, for it.
On the 3 wire plug Green goes to ground, Red/white to positive, and Black to switched positive.
On the 5 wire plug. The 3 yellow wires go to the 3 yellow wires from the Alt. The white wire goes to the green wire from the alt, and the black wire goes to the white wire from the alt.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."
1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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tools, you and the other fellas on this forum have given me a great deal of advice. my fear is to buy another recti/regul and have it go out soon. i only see one fuse on here and its on the starter solonoid. had i have seen these wires taped up and connectors just loose, i prob wouldnt have purchased this bike. but every thing works, except charging system.
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
|
Administrator
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If, you are not sure about it, I have a harness, and the parts to put it back stock. However it would be cheaper, and easier to straighten out what, you have.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."
1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
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cheap and easy? my kinda date! that fella i got this bike from new what he was doin. im not concernd with it being stock. i just want it to run good. im gonna have to figure out whats missin and go from there. i dont like the idea of bypassed fuses.
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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tools, slag. i found a couple of burnt connections in the 8 wire harness. just tryin to make sure wiring good b4 i buy any parts. it does charge some, but at no time do my volts at battery read above 12.45. makes me wonder if i should be able to go for a ride...and make it home.
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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Burned connectors means excessive heat, which means excessive current... Not a good sign. Did your Rect./Reg. pass the FSM's tests? If so, then it may be good, but with only 12.45 Volts, I doubt it. Burned wires might cause a voltage drop across them, so it is hard to tell. What did the FSM test show? Pass/Fail?
If the FSM test on the Rect./Reg. was good, then go through and replace the burned wires with same gauge, and color, if possible. Clean/replace damaged connectors, as needed (better yet, replace the harness with an exact, used, replacement -- keeps it all factory, and no translation needed for color coded wires...). Even if the Rect./Reg. is bad, those burned connectors are not your friend -- they might cause issues down the road, literally.
My take is that you need to replace the wires, no matter what. Then you can look at the Reg./Rect. unit. If you can handle the cost, it might be worth your while to have a back-up Reg./Rect. unit anyway, so if your's is actually working, no harm, no foul -- you will have that spare. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII
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finally gonna make some time to work on this bike.would be best to replace harness completly. just gonna go around it now. acording to my digital vom i have no continuity at any time on the rect/reg. im askin if its the same test on the one i have as the two seperate parts shown in the manual?
With my opinion and your knowledge, we can change the world.
KEEP YOUR FISTS UP, FOR BALANCE AND PROTECTION!!!
i like fat chicks
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