Regulator Rectifier wiring

[Zedbiker]

Hi all. I am a newbie here so be gentle with me...
I will introduce myself properly at a later date but at the moment I am hoping for some help.
I have owned my Z1a for a lot of years. It was off the road and stored for approximately 5 or 6 years due to marriage getting in the way. That is all over so I thought I would get the old girl back and running.
A friend of friend (numpty) offered to get it back to its former glory and roadworthy. To cut a long story short he basically did bugger all apart from burn out the regulator rectifier and then did a runner. Luckily I managed to get the bike back.
So I have bought a replacement regulator/ rectifier but it has different wiring to the original Newtronics one previously fitted.
I have the correct 3 phase yellow wires which are obvious, a black (earth) and 1 red wire(live) which is supposed to go to the battery. The newtronics one had 2 live wires. One of which T'd into a white wire coming off the main battery which was fused then disappears behind the starter solenoid and the other was connected into the green connector which I believe is for the ignition switch. So where do I connect the red wire on the new regulator/ rectifier. To the wire from the ignition switch or the mains one which is fused or ignore both and go direct to battery? I do have a photo but haven't worked out how to put it here yet.
I would be so grateful. I am not sure whether the old one burnt out cause it was old (black wire was the one that went) or if it something they did. I am told the bike was running when it started smoking from the Reg/Rect.
I have tried connecting to each of the aforementioned connections but it wouldn't start. Before I start looking elsewhere I wanted to check with the experts that I am doing everything correctly so far.
Looking forward to any help you guys can give.
If it helps it also has a Boyer Bransden ignition system.
Thanks again. Z

[chrisu]

the live wire goes into the main red/white power line to/from the battery.

there is normally a double bullet connector near there - plug it into that. The other end of this goes through the loom/fuse to the ignition switch.

the main red/white also goes straight to the + on the battery so if you can't find the double bullet connector you can connect direct to the battery.

[PAULJAC47]

Hi, the one you had with 2 lives had to have a trigger live, usually off the brake light live side which is made live when ignition is on,the one you have does not need this,with a fully charged battery the bike should still start and run even with a burnt out unit!!if you have connected it up ok when bike is running you should have 14.6 volts across the battery at about 4k revs..Good luck Paul J

[Zedbiker]

Many thanks guys.
I'm recharging the battery and will connect up as per your advice. I'll let you know how it goes.

Thanks again

[Zedbiker]

As per your advice I connected the Reg/ Rect. Knowing that this was correctly connected I persevered with cranking her over and voila she started!!!
This is the first time I have heard her running for many years so you can imagine how good it feels.

Next on the list is to go through and replace some bits which were lost or broken or not done during numpty time . Next Spring she will be back on he road but all the work will be done by me this time.


Many thanks again.

[chrisu]

don't forget to put a meter across the battery when its running to ensure its charging ok.

As Paul said - you should see about 14.6v - anything between 14 and 15 is ok. Certainly not more than 15.

[Zedbiker]

Thanks Chrisu

I checked and it was certainly in the 14 - 15 range when at 4000revs.

Cheers Z

[PAULJAC47]

Result,Good to hear she is up and running ,dont be afraid to ask any questions on here, some one usually knows the answer