Question about 1988 Suzuki GSX 1100 F (Katana)

1 Answer

Charging problem Battery not charging. Bike will run on full battery .Which parts can I replace ? My manual shows a regulator on the alternator . It shows brushes in the alternator, but it doesn't show a stator, that I thought all bikes have.Is there any other part between the alternator and the battery that could be suspect ?

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  • Suzuki Master
  • 8,404 Answers

There is a thing called a bridge rectifier. It clips 1/2 of the AC power coming from the alternator. It makes the battery think it is getting DC - it is actually rectified AC. If there is a bad diode in the bridge, your battery will not charge. Test with a flash light battery and lamp. Good will pass power in one direction but not the other. If you can get the light to work in both directions, there is a bad diode.

Posted on May 21, 2013

Testimonial: "Thanks for the info. Is this rectifier located inline to the battery or in the alternator assembly?Is this only common in this particular Suzuki or other bikes as well?Thanks again, Ray"

  • Ray Cheselka May 22, 2013

    Thanks for the info. Is this rectifier located inline to the battery or in the alternator assembly?Is this only common in this particular Suzuki or other bikes as well?Thanks again, Ray"

  • A Miller May 23, 2013

    The rectifier will be in a heat sink of some kind and there will probably be several wires on a plug. Electrically, it is between the alternator and the battery. This kind of problem is typical of all modern electrical "automotive" systems. Non motorcycle systems are typically more robust than motorcycle systems. You may be having other troubles but I would check the rectifier next. If we used generators instead of alternators, we souldnt have to have rectifiers. Of course, they are bigger and weigh more and cost more. Good luck with your fix.

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SOURCE: Gsf400 bandit wont charge

If the battery is 2 years old or more it may be bad. Add water to each battery cell so that the plates are covered by the water. Charge the battery with a 1amp or 2 amp charger for about 5 hours. If it will not hold a charge then replace the battery.

At the site below you can download a free PDF service manual for your bike. The manual will tell you how to check the electrical components. It will tell you how to rebuild the engine as well, but save the rebuilding until next month. :)

http://www.carlsalter.com/motorcycle-manuals.asp

Please rate this answer. Thanks spooner1401!

Posted on Apr 17, 2009

  • 66 Answers

SOURCE: my battery is not charging when bike is running (gsxr 600 k6 )

When you put a voltmeter across the battery terminals, you should get >13.5V (typically) with the engine running. 
If less than this then your charging system is faulty and your battery will not charge. 
See this personally authored thread for a diagnostic guide on how to determine whether you have a problem with your stator or Rectifier/Regulator - inlcuding some cold resistance checks you can do on the R/R to determine if it is shorted. 
[url]http://www.triumphrat.net/speed-triple-forum/104504-charging-system-diagnostics-rectifier-regulator-upgrade.html[/url]
It was written initially for Triumphs, but applies to ANY 3-phase motorcycle charging system. 

Posted on Aug 15, 2009

  • 16 Answers

SOURCE: Faulty regulator rectifier- can't start the bike

I have a '07 C90T.
I have just replaced my stator. I replaced the reg/rectifier earlier this year. I replaced the battery one year ago in October.

I firmly believe what started the problem. Two guys that I told I didn't need help, but they pressured me to let them help. They hooked a battery backwards to my bike. A lot of people believe that's what shortened the life of the rectifier and stator.

But keep this in mind. The connections for the regulator/rectifier are not waterproof. I had done a lot of rainy riding and I first found a burnt connector on the discharge side of the reg/rect. My mechanic told me I needed to replace the reg/rect so I did but I soldered the wires and made them waterproof. I didn't do this on the stator side of the reg/rect and a few months later, when the bike quit charging again, I found that connector burnt, so I cut it out and soldered and waterproofed it.

Two days after we got back from a 700 mile round trip to Red River, NM, my bike quit charging again. This time though, I have a voltage meter on the bike, so I was aware of the problem before the bike could strand me someplace. Get one of those btw.
When I checked the old stator after I replaced it, I found the stator good but the pulse signal generator bad. It's required that you replace both btw. You have to, they are joined at the grommet.

Ok well, the battery cost $60 last year and I replaced it myself.
The reg/rect cost $140 through my mechanic and I replaced it myself.
Got the stator online for $173 shipped and they advertise a better stator that puts out 20% more power.
Not counting little things like solder, tape, heatshrink and such, I'm out a little less than $375 on my charging system.
I hope it's a done deal.
Again, some think the problems began when the battery was hooked up wrong, but I lean to believe the sub-standard Suzuki connections may have a hand in this.
Hope this helps. . . Joe

Posted on Sep 28, 2009

  • 16 Answers

SOURCE: The charging system is not working properly. With

What I learned on my '07 C90T----- is if it doesn't charge, it doesn't run for long.
I bet it's the battery.

I've had charging problems and I do blame a portion of it on Suzuki's connectors at the regulator/rectifier not being weatherproof.

I had to replace my battery at less than 10000 miles.
I had to replace the regulator/rectifier last April.
I had to replace the stator just two weeks ago.
When troubleshooting, I disconnected the stator at the reg/rect and only got 40 volts at high rpm.
It's supposed to put out 80 volts.
Got the stator from regulatorrectifier.com for half what the Suzuki shop wanted. Paid $173 shipped.

Posted on Oct 03, 2009

Benimur
  • 6966 Answers

SOURCE: charged battery.showed charged right away.bike wont start unless

Hi and welcome to FixYa,

The description "...series of clicks..." is significant. The battery is not putting out enough current to turn the starter motor. The best way to determine the battery condition is to have it load tested. However, considering eveything else, it would almost always be a failed or about to fail battery.

Incidentally, the alarm has been designed to have minimal current drain when in standby.

Good luck and thank you for asking FixYa.

Posted on Jan 06, 2010

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