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GPZ1000RX Alternator

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HowieD
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Joined: 5th Feb 2008
Location: Lincoln

GPZ1000RX Alternator

#1 PostAuthor: HowieD » Mon Apr 01, 2019 5:07 pm

Hello,

Anyone know where I could find help with an Alternator issue.

I'm helping with overhaul and rewire of a Magnum 3 with a GPZ1000RX Motor. The trouble seems to the Alternator: It has an Integrated Circuit R/R so there are two wires only - Dark Red and Black.

With the wires connected the battery goes flat overnight

I didn't have a wiring diagram at first so assumed there were positive (Dark Red) and Earth (Black). With the Black connected to the Battery earth post there is a current flow of 2.4A using a clamp Meter.

I did some research and found a diagram with more detail that shows the Alternator case is the earth and the two wires out are separate positive feeds. So I have connected them both to the Battery Positive. With the motor running I connected the Dark Red cable to the Battery Positive and there was very little current flow and the battery voltage didn't rise. Connected them both and achieved a steady 13.9V Battery at 3000RPM. Disconnect either lead and the alternator output stopped. Connected again and the Dark Red had 12A but the Black lead -4A so power was running backwards to the Alternator from the Battery Positive.

The fully charged Battery dropped to 7.8 Volts after a few hours so it's not fixed by connecting the wires differently.

So I'm looking for help in correctly wiring up and any tests i can do to see if the is really a fault with the Alternator or the IC R/R

thanks in advance

Howie
CD185, Maggot, Z1-R, Horace, Monster 620ie

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z1bman
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Location: WORDSLEY WEST MIDLANDS

Re: GPZ1000RX Alternator

#2 PostAuthor: z1bman » Mon Apr 01, 2019 7:18 pm

the two wires out of the alternator 1 is a permanent live connected to white wire from the fuse box the other is a switched live from the ignition switch / brown wire

HowieD
100Club
100Club
Posts: 363
Joined: 5th Feb 2008
Location: Lincoln

Re: GPZ1000RX Alternator

#3 PostAuthor: HowieD » Mon Apr 01, 2019 8:10 pm

Thanks - I can work out where to connect up after the Main Relay.

Not a conventional wiring loom.
CD185, Maggot, Z1-R, Horace, Monster 620ie


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