Question about 2000 kawasaki KMX 125

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6 terminal motorcycle rectifier diagram - 2000 kawasaki KMX 125

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Good day to all.....what is the name of its terminal in rectifier of kmx 125???plzzz help....thank you...god bless....

Posted on Jan 24, 2011

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Battery terminal on regulator rectifier where does it go

Hi, Joseph it goes to the negative side of your main circuit breaker/fuse for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Battery not charging properly when running on my Rd125lc is the rectifier

Either the rectifier has blown, or the battery is dead. Before taking to a dealer check all your wiring earths and battery terminals for tightness and contact. It happens.

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Bike is breaking down at 7000 rpm

check all terminals esp of rectifier, put a volt meter across battery does voltage go down below 12v when you rev the bike. sounds like a rectifier problem if works sometimes and other times not, had similar on a gpz600r. cleaned all terminals and its fine now. this cure is only for if the bike is ok at times. if its like it all the time then its could be other faults. let me know..

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May 15, 2012 | 1985 Yamaha XJ 700 X Maxim

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Have a 99 suzuki intruder 1500. Have replaced the battery 3 times. The battery keeps dying and I'm dying on the inside. So frustrating. Could the timing be off? I even replaced the starter thinking it...

My friend ... you say you have replaced the battery three times ... My first thought is a MC battery lasts about 3 years . 3X3 = 9 years ... you have had excellent service getting 12 years from three batteries. But alas, I think you are saying you have replaced three batteries one right after another ... and you did this recently. You say you suspect the timing ... not the problem The time your engine fires has little to do with battery health. Next you say you suspect the starter ... the starter is a motor that you control with a switch ... it either runs or it doesn't run ... it too has little to do with battery health. I suspect there is something wrong with your Suzuki involving either the alternator or the rectifier. The inside of the rectifier you would find a bridge made up of probably 4 diodes. A diode is a one way switch that allows power to flow from A to B but not B to A. This allows the output from your alternator (AC power (Alternating Current)) to be "rectified" into a kind of power that looks to the battery like DC (Direct Current). Your motorcycle actually runs off the battery ... the alternator's job is to keep the battery charged. (By the way, you have to put power into a alternator to get power out of it since an alternator is normally not "self exciting". If your battery is dead, even if running, you are not making electricity to charge the battery.) If one or more of the diodes are shorted in the rectifier, that allows power to go from A to B and B to A. When this happens, power doesn't become "DC" to go into the battery, actually, it goes back to ground sort of like a short. That will 'kill' your battery. First off, the battery power is used up by the motorcycle, second, the alternator cannot charge the battery because its product (AC) is going to ground.

You can test your rectifier with a flash light battery, a flash light lamp and a paper clip. Disconnect the rectifier from the wire harness. If you put one end of the paper clip on the bottom of the battery, one end of the light on the other end of the battery, then touch the other end of the paper clip to the edge of the lamp. The light will light. Now, run the power through one terminal on the rectifier - out another terminal until the light works. ID the terminals. Then reverse the polarity. The light should not illuminate ... if it does, that means power is flowing through the diode both directions and makes your rectifier suspicious. Check all combinations of the various terminals you find on the rectifier ... (possibly up to 4 terminals or more).

If you don't want to do all this stuff, you can take the motorcycle (or the rectifier) to your local motorcycle repair shop and have it tested, probably for no or little charge.

Oh yea, your alternator could be bad, but I doubt it.

Good luck to you on this repair. Do not dispare.

Thanks for your question @

Apr 30, 2011 | 2001 Suzuki VL 1500 Intruder LC

1 Answer

I just bought a new battery for my 1989 yamaha yzf 600 because it kept dying on me, and after a week of use the bike won't start again. I've replaced the terminal with a new copper terminal. I was...

Is your alternator putting out? Is your rectifier good? Test the alternator by checking the battery voltage when the engine is reving about 1200. Check the rectifier with a self powered test probe (engine off): If the light lights one direction but not the other - you are probably good. If it lights both directions or neither direction it is probably bad. A rectifier is suppose to pass 1/2 of the AC sine wave and not the other 1/2, creating 'rectified AC' which is used to charge the battery.

Mar 10, 2010 | 2007 Yamaha Road Star

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Need wiring harness diagram

Go to this site and you can download a free PDF service manual. They have a single manual for a GS750. It is for a 1976. That is close enough to your '78 to still be very useable.

Can I get a “very helpful” rating on this answer?

Aug 13, 2009 | 1978 Suzuki GS 750 E

1 Answer

Wont charge

Hi and welcome to FixYa,

For an 81, a lot to check. The charging system is not a simple affair. You would need to check the wiring, output of the stator and of course, the rectifier / regulator combo among others. Start with the terminals / connectors of the stator to the regulator.

A wiring diagram would help.


Good luck and thank you for using FixYa.

May 29, 2009 | 1981 Suzuki GS 750 L

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