Regulator or rectifier?

[john-meyer]

Bike-Z1000A1
Problem- Battery shows 9 volts with engine off. Jumps to 12 volts when on tickover but goes DOWN when revs are increased.Neutral light /rear light flicker on tick over, Indicators flash too quickly and battery does not charge. I duspect rectifier but maybe regulator or something else? Any ideas would be appreciated,
Regards, John

[moizeau]

Have a read through this to get an understanding of how it works a basic tests.

https://www.denniskirk.com/learn/how-to ... motorcycle

(I have had no dealings with the site)

[Ultim8pc]

You need to check thee battery and all components of the charge circuit.

[Wrigers]

Take a look at this link, it helped me...
http://motorcyclemd.com/how-to-fully-tr ... ng-system/

[scott]

Sounds like you might have a battery cell dropping out intermittently. I had this happen on a gel battery once.

[8 Valve Mark]

+1 to Scott's theory, but also worth checking the earth side from the battery too.. good luck. m

[moizeau]

Can you ride it, if you've got a cell down it will sap the juice from the alt and it will bog down or cut out in my experience, what's the battery like off the bike?

[scott]

Mine did both, bogged down or cut out.

[john-meyer]

Thanks all for your help. Today replaced old regulator and rectifier with Z power combined unit.-No change, so did more poking around and removed the flasher and hazard relays-.Now the bike charges and everything ok,except flashers obviously. Borrowed the same two relays from my other Z and everything works ok.I am not bad with electrics but cannot understand how a duff flasher or hazard relay can affect the charge circuit=no wonder people hate electrical problems!!!=just got to find a replacement hazard relay which no one seems to list.Flasher one is no problem.Regards John

[john-meyer]

Hi all , that was not the end of the story after all! Even with the flasher relay replaced,today still only had 9.6 v at battery.Even with engine running this would only increase marginally but flashers and headlamp were ok.So I fitted a new battery as suggested in your replies and allseems good now. 12.4 volts with engine off.Once the engine starts,12.6 volts,rising up to 13volts after o couple of minutes running and staying there even with main beam on,with engine on fast idle. So with the reg /rectifier replaced and a new battery,any further problems will point to alternator or bad wiring maybe at the four plugs on the sub loom-taking it out for a test ride tomorrow so we shall see!

[scott]

Electrics are so much fun