Kawasaki Z1 1975 Voltage regulator

Andrew Thompson · Derestricted Danger Joined: 27 Jul 2007 Karma :

Hi, does anyone have a proper z1 voltage regulator wiring diagram? I have managed to strip mine down, but some of the resistors have lost their colour coding as have the capacitors. I have the one out the haynes manual, but it is rubbish.

Regards,

Andy

Big Pete · Spanner Monkey Joined: 18 Jul 2004 Karma :

I have a factory manual, I'll try and have a look later. If you havent heard in a few days PM me and remind me.
____________________
Trust me, I`m an engineer
GarageOfPower.co.uk

hmmmnz · Super Spammer Joined: 22 Aug 2006 Karma :

why don't you just buy a single reg/rect unit and be done with the seperate units

they are cheap as chips on ebay
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

bish777 · World Chat Champion Joined: 11 Nov 2004 Karma :

seperate units with a points bike i think.
____________________
GSXR1100J

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

They would have been seperate units on account of its age. Just bung a superdream type reg/rec unit on, saves a load of grief. Surprised it hasn't already been done to be honest.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

hmmmnz · Super Spammer Joined: 22 Aug 2006 Karma :

Andrew Thompson · Derestricted Danger Joined: 27 Jul 2007 Karma :

Hi,

Thanks for all the replies! I have rebuilt this bike from scratch (with loads of help from other bikers on the net). The regulator overcharging is a common fault on the Z1's, but as I am trying to keep it original as possible so I thought I would rebuild it with modern components rather than replace and share the results with other Z1 owners. It is a solid state unit, but I have managed to break apart and trace the circuitry, but I still need to know the component values. If you can help please let me know.

Regards,

Andy

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Ahh, go on, just sneak a modern reg/rec inside the old box.

I'll tell you secret. All those 'concourse' vintage bikes you see do stuff like that. Do you honestly think a 1950's, rubber jacketed Lucas motorcycle battery still works? You pull that rubber jacket back and I bet you a fiver it says 'varta' underneath.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

ZRX61 · Victor Meldrew Joined: 05 Nov 2003 Karma :

Bit pointless making it 100% original if it you can't ride more than 25 miles without frying the battery etc.. everyone I know just puts a later J model set up on em.

Big Pete · Spanner Monkey Joined: 18 Jul 2004 Karma :

The factory manual doesnt give any values for the resistors, the zener or the thyristors. you're going to have to suck it and see I'm afraid. However, I suspect that it isnt all that sensitive as they are a current limiting load. I would guess they run about 100-200 ohms and are likely high power output ones so make sure they are well bonded to the heatsink.
____________________
Trust me, I`m an engineer
GarageOfPower.co.uk