Battery will NOT charge

  • 2ndgenKZ
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Battery will NOT charge

02 Jul 2013 22:37
#594793
Thinking that I need to replace regulator and rectifier. Used car to jump my bike last summer and has never been the same, in fact had to jump it since then.

Let me know where I could buy a regulator/ rectifier. Going to test ALL the connections, tired of dealing with battery.
1983 Kawasaki KZ750 LTD MAC
1983 Kawasaki KZ750 LTD BONES
1981 KZ750E KERKER
1985 Dodge Conquest FLATTY
1995 Jeep Cherokee RUSTY

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  • 650ed
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Re: Battery will NOT charge

02 Jul 2013 22:40
#594795
These folks sell quality regulators / rectifiers. Ed

www.oregonmotorcycleparts.com/Products.html
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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  • jeffasaki
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Re: Battery will NOT charge

02 Jul 2013 22:48
#594797
buy a new battery
buy a new reg/rect
should make close to 13.8 volts at 4000 rpm
when its all working right
check voltage b4 you do the swap
ive had problems in the past due to fucked batteries
if not done yet get a dyna ingnition
worth every penny ;)
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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  • MFolks
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Re: Battery will NOT charge

02 Jul 2013 23:39
#594807
Are you getting voltage from the alternator on all three yellow wires? If not, the stator(the wire windings) may have a short, reducing the voltage to the regulator/rectifier.

Here's how to ohm check it, using a multimeter:

Using an OHMETER or multimeter, Check the three wire combinations again, looking for a reading of 0.36 - 0.54 OHMS. If the readings are above or below, the stator may be bad and need replacement. Also check from any of the three YELLOW wires to ground, this will show if arcing took place. Check only with the engine off !!

Before ordering a new stator, check the connections from the stator as there are electrical "Bullet" connectors that may be damaged or dirty.
Inspect the wiring for signs of shorting or overheating too. www.z1enterprises.com sells replacement rubber grommets for the alternator output wiring, they get hard and could leak oil after a while.

Check the wiring coming out of the grommet as there have been situations where the wires were damaged causing a short(I.E. twisted together with insulation damage).
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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  • jeffasaki
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Re: Battery will NOT charge

02 Jul 2013 23:53
#594808
def check wires from alt
they always get worn out where they run through the chain cover/output sprocket AREA
78 Z1R
78 KZ1000
76 KH500 gone
71 HS1B 90
81 GS 1100 gone
80 PE400
02 KLR


Ontario Canada

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  • koolaid_kid
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Re: Battery will NOT charge

03 Jul 2013 10:26
#594846
There is a much better regulator rectifier available. The original is a shunt unit, which basically creates a lot of heat in the stator, which can cause it to fail. A series R/R does not create this heat, and lets the stator last a lot longer. If you are interested, please reply and I will find the link and post it for you.
1983 GPz 750
810 Wiseco, Kerker, K&N, DynoJet S3, Accel, Progressive, etc.

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  • 2ndgenKZ
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Re: Battery will NOT charge

03 Jul 2013 12:37
#594870
I think I know what your saying. That's a reg/rect in one?? Definitely interested
1983 Kawasaki KZ750 LTD MAC
1983 Kawasaki KZ750 LTD BONES
1981 KZ750E KERKER
1985 Dodge Conquest FLATTY
1995 Jeep Cherokee RUSTY

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