Question about kawasaki ZX-6R Motorcycles

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The battery will not stay charged and the regulator rectifier get hot after running the bike for a short period of time. bike runs but not well when you disconnect the negative battery cable

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Sounds like the regulator/rectifier has failed. you need to check that you are getting 13.5 14.8 volts at the battery when bike is running, higher means failed unit and under means same. you need a diode tester to measure reg/rectifier and will also need to check stator output with multi meter on AC, should get 60-100 volts when bike revved with stator wire unplugged from regulator.
best solution is to take to your local shop and get them to perform these and other tests to confirm as electrical parts are generally not returnable once purchased as very easy to damage if put into a bike with other charging system faults

Posted on Sep 02, 2010

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Posted on Jan 02, 2017

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I have a peugeot xp6 runnin fine but doesnt charge the battery whats wrong


If not charging then it can only be either the stator windings or the regulator/rectifier. The silver "box" with fins on it is your rectifier. Good chance that's the problem...Try another rectifier and put a multimeter on battery terminals. Check voltage when not running then check with bike running. Fully charged battery should show approx 12.4 volts. With bike running it should show approx 13 plus volts which will tell you that it's charging. Usually it will be the rectifier rather than the stator windings that stops it charging.

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1982 yamaha maxim 400 will start, run for about a minute, then shut off. It wont re-start until i turn the key off and back on, then it starts right up, to repeat the problem.


Yes depending on the load just because you have water in the battery doesn't mean you don't have a shorted out cell in it. too much, and a spike or short in voltage will shut it down. a battery will only last you under good conditions on a bike will be 12 months. don't be a cheapskate get the battery checked and get you a manual for this bike it will help you in the long run. otherwise it sounds good. Also coils get hot and quit when they get hot and run when they cool. See a manual will help you troubleshoot it.

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1 Answer

Regulator/rectifier connections gets hot on 1986 goldwing 1200 sei


normal for voltage to increase with RPM, normal for voltage to decrease as battery reaches fully charged. make sure connectors are clean and tight.

Jun 30, 2012 | 1986 Honda GL 1200 Aspencade Gold Wing

1 Answer

It's not charging the battery


FIRST THING I WOUULD LOOK FOR ON THIS IS BURNING TO THE REAR OF THE REGULATOR RECTIFIER,NORMALY FAIL WHEN BIKE IS USED WITH DISCHARGED BATTERY, ONLY PROBLEM IS IN SOME CASES WHEN THE BIKE IS USED FOR A PERIOD OF TIME WITH A FAULTY RECTIFIER, THEN THE GENERATOR ALSO GOES, YOU CAN DO A TEST WITH A MUTIMETER CHECK THAT THE THREE YELOW WIRES FROM THE AC GENERATOR ALL HAVE CONTINUITY, THAT IS BETWEEN THEM WHILE THE ENGINE IS NOT RUNNING WITH THE KEY TURNED OFF

Oct 28, 2010 | 2007 Suzuki GSX-R 600

1 Answer

I have a 96 Honda CBR900RR and I have redone almost everything on it. I hooked the engine back up and the battery won't stay charged. It will stay charged until everything is running then it cuts off and...


the stator produces ac power which is rectified by the rectifier pack to dc power which is what the electrics uses
the voltage regulator controls the voltage to 14.5-14.8 volts dc
the voltage regulator by controlling the voltage also controls the maximum out put from the stator or the current being produced to charge the battery and run the lights and what ever else you have connected
hot stator and rectifier indicates uncontrolled out put so take it to an accredited bike electrician and have it fixed properly
have the battery load tested as uncontrolled output will boil a battery and ruin it

Apr 30, 2017 | 1995 Honda CBR 900 RR Fireblade

2 Answers

Good evening sir, I have yamaha R1 bike. in bike yesterday battery discharge than charge the battery. today bike start and running but after .5 miles bike is stop running, self is not running and battery...


1998 to 2002 have problem with plug to voltage regulator/rectifier which is under seat. connectors in plug overheat and bike stops charging the battery. you will see if connectors have been hot and will need to be replaced if they have.
once replaced check bike charging with multimeter at battery,should make 13.5 - to 14.5 volts just above idle. if not will need to test stator and regulator.

Aug 11, 2010 | Yamaha YZF-R1 Motorcycles

1 Answer

Bike will not start or stay running on a full charge battery/bought brand new battery, still same promblem,jump bike off,will crank ,ride bike for 30 min. park bike, leave bike running,lights start's to...


sounds like the problem is your battery is not charging when you are riding. The most common cause is a faulty regulator / rectifier. Contact a motorcycle wreckers for these parts, or your yamaha dealer.
Easy way to test is, when your bike is running, and the lights start to dim, before the bike shuts down, using a volt meter, test the voltage at the battery terminals, should be about 14V. If faulty rectifier,no charge going in to your battery, then the reading will be low, about only a few volts. If you dont have a volt meter, then any mechanic shop can do this test for you. best to have this done before buying any parts.

Aug 11, 2010 | 2000 Yamaha YZF-R1

1 Answer

1991 xv250 yamaha smoking electrics


Sounds like your regulator/rectifier or your CDI box. I would think regulator, because the bike is still running. Check to see what your charging system is putting out. If it is low, or really high it is the rectifier.

Jul 10, 2009 | Yamaha XVS 250 Dragstar Motorcycles

2 Answers

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. 

Jun 15, 2009 | 2006 Suzuki GSX-R 600

1 Answer

Back fires when starting runs irratic


Hi,

Offhand, may I suggest that you have the battery externally fully charged. Thereafter start/run the bike with the voltage regulator (rectifier) disconnected. Shorted diodes or transistor inside the regulator maybe responsible for the abnormal heat buildup and likewise the backfire and/or the intermittent engine run. The CDI may be cutting out if the voltage is higher.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Nov 19, 2008 | 1999 Yamaha TDM 850

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