Regulators, rectifiers, and stators, oh my! - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 16 (permalink) Old 10-01-2006, 09:08 PM Thread Starter
 
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Regulators, rectifiers, and stators, oh my!

Oh, and batteries too. I've been taking out my 1979 Suzuki GS1000, while I am waiting for a part for my CBR. I charged up the four-year-old battery and went out to the Safeway in Golden. The battery was dead, and I asked everyone for jumper cables. They looked at me like I had three heads. Finally an old guy had them, but his arthritis was so bad he said I had to install them. Only took a second to start.

So I got a new battery from Auto Zone and charged it overnight. Using my digital voltmeter, it read 13.6 at idle and decreased to 12.8 at 5,000. A problem, since it should be 14-15.5. I disconnected the rectifier (It's so old it has separate rectifier and regulator) and checked continuity. It was fine.

I disconnected the regulator and found corrosion in the yellow wire. Cleaned it, connected it, and checked battery voltage: 15.9 at idle, increasing to 16.8 at 5,000. The voltage regulator is bad. Unbelievably, they are still available from Suzuki for $180. But all regulators are the about the same. I'm going to the junkyard and will get a $15 one from a Yamaha and only connect the regulator wires and leave the rectifier wires alone. I'm just glad it wasn't the stator, which is expensive and a pain to install.
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post #2 of 16 (permalink) Old 10-01-2006, 09:11 PM
 
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I had a reg/rec go bad on my old F3, 12.7 at idle and 18.5 at 8k, i was literally boiling batteries.
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post #3 of 16 (permalink) Old 10-01-2006, 09:18 PM
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These problem can be a pain to find sometimes.

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post #4 of 16 (permalink) Old 10-01-2006, 09:34 PM
 
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These problem can be a pain to find sometimes.
electrical is not easy to troubleshoot
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post #5 of 16 (permalink) Old 10-01-2006, 11:58 PM
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electrical is not easy to troubleshoot
I hate dealing with electrical!




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post #6 of 16 (permalink) Old 10-02-2006, 07:21 AM
 
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I hate dealing with electrical!
Most people do...because they don't understand what it is and how it works...It is just going to get worse in the future...soon you won't be able to change your oil without the bike hooked up to a laptop...

I gotta admit though...I like electronic ignition and fuel injection much better than breaker points and carbs...
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post #7 of 16 (permalink) Old 10-02-2006, 07:45 AM
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Quote:
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electrical is not easy to troubleshoot
yes it is, I do it for a living though

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post #8 of 16 (permalink) Old 10-02-2006, 07:49 AM
 
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yes it is, I do it for a living though
I was more talking for the average cat on the street. But ya, once you know what you're doing it isn't bad truthfully.
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post #9 of 16 (permalink) Old 10-02-2006, 11:05 AM
 
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you wouldnt belive the tech in these new evinrude e-tec... look them up if they put this stuff in motorcycles watch out, its a 2 stroke that is 63 times cleaner than a 4stroke, and they have no problem squeezing hp out of them either.
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post #10 of 16 (permalink) Old 10-02-2006, 11:08 AM
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you wouldnt belive the tech in these new evinrude e-tec... look them up if they put this stuff in motorcycles watch out, its a 2 stroke that is 63 times cleaner than a 4stroke, and they have no problem squeezing hp out of them either.
My dad got one of those (60 IRRC) for our pontoon boat... It ROCKS! I was amazed about two things... How quiet it is and how well it performs compared to our old 90...
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post #11 of 16 (permalink) Old 10-02-2006, 11:17 AM
 
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My dad got one of those (60 IRRC) for our pontoon boat... It ROCKS! I was amazed about two things... How quiet it is and how well it performs compared to our old 90...
Yea we have a Sylvan 8522 sport here with a 200 etec HO and man have you ever seen a pontoon do 57?
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post #12 of 16 (permalink) Old 10-02-2006, 06:34 PM
 
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post #13 of 16 (permalink) Old 10-02-2006, 08:54 PM
 
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those can be problem areas for the average joe who doesnt know what to look for in the system to fix it. if you know how to find the issue and fix it, you're doing well.
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post #14 of 16 (permalink) Old 10-03-2006, 03:18 PM
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Most people do...because they don't understand what it is and how it works...It is just going to get worse in the future...soon you won't be able to change your oil without the bike hooked up to a laptop...

I gotta admit though...I like electronic ignition and fuel injection much better than breaker points and carbs...
You're right Bee. I don't get alot of it. Its the same way as with anything else I start to work on.




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post #15 of 16 (permalink) Old 10-05-2006, 07:23 AM
 
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I kinda know how it works, but I also know it's a pain in the ass troubleshooting those things. It's hard to pin point the issue.
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post #16 of 16 (permalink) Old 11-06-2006, 05:12 PM
 
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Here's a really good electrical fault finding/troubleshooting diagram:

http://www.electrosport.com/electros...t_finding.html

Any Aussies that want your bike painted.....give me a holler! www.paintwerks.com.au
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