Author Topic: Got it running!! Wont charge:(  (Read 2066 times)

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Offline topperharley

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Got it running!! Wont charge:(
« on: April 15, 2016, 11:38:04 AM »
Hi guys.
Finally got my 72' cb on the road but damn, not charging:(
Iv got a aftermarket regulator rectifier. The three yellows go  to yellows. red to bat and green to ground. White goes to green on stator and black goes to stators white.
the problems comes when i look all the wiring diagrams. there are 8 wires on every diagram  but i only have 7. im missing one black wire but there are these kind of reg/rec for sale on cb 750 sohc. How do i wire this? The missing wire should go to ignition switch. How else can i get the "wake up" power to reg/rec?
« Last Edit: April 15, 2016, 12:08:28 PM by topperharley »

Offline topperharley

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Re: Got it running!! Wont charge:(
« Reply #1 on: April 15, 2016, 12:13:52 PM »
is this right?

Offline topperharley

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Re: Got it running!! Wont charge:(
« Reply #2 on: April 15, 2016, 09:31:11 PM »
Thank you.

Lähetetty minun SM-G903F laitteesta Tapatalkilla


Offline PeWe

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Re: Got it running!! Wont charge:(
« Reply #3 on: April 16, 2016, 01:22:51 AM »
Thank you.

Lähetetty minun SM-G903F laitteesta Tapatalkilla
Minä en ymmärrä :)
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline topperharley

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Re: Got it running!! Wont charge:(
« Reply #4 on: April 16, 2016, 01:24:16 AM »
 

Offline dougan

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Re: Got it running!! Wont charge:(
« Reply #5 on: April 16, 2016, 07:51:46 AM »
When I got my 350F it wasn't charging at all either.  I ended up just taking every wire connection I could find and redoing it well.  After doing enough connections, it started charging again.  I still don't know which connection it was that was the problem.  Maybe try this if you haven't already, before you get too far into this stuff.
1972 CB350 Four

www.whobrew.com -- resources for home brewers

Offline topperharley

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Re: Got it running!! Wont charge:(
« Reply #6 on: April 16, 2016, 12:17:33 PM »
Case closed. I think.
I connected the wires like shown in the picture before and now it chargin 14.5v. 15.5v when revving but sets quicly to 14.5.

The oil leak was a loose connection on oil line.