cb500 four coil suppliers

[LesH]

So did I !!

[Bryanj]

No I hate to say it but TOLD YOU SO!!!!!

[Trigger]

Its wrong, the insulating washers should be either side of the back plate bracket so that the bolt AND NONE OF THE WIRES of contact breaker spring connects to it

Starting from the inside
bolt head
steel washer
contact breaker spring
insulating washer
back plate post
insulating washer
condenser wire
blue/yellow wire
steel washer
spring washer
nut

I am shite at electrics Bryan and found this sequence one I have never seen on the points so I dug out a original set and it is:
Bolt head
Blue/ yellow wire
Contact breaker spring
Insulating washer
Back plate post
Insulating washer
Condenser wire
Steel washer
Spring washer
Nut

This is the way I have always wired them up. Does it make a difference ?

[Bryanj]

None whatsover mate, the wires are connected together by the bolt (also to the points spring) but insulated from ground(Back plate post) and you can put them in whatever order is easiest, i was listing from geriatric memory!!

[LesH]

Wired up as Bryanj laid out, starts, revs and ticks over just fine.  Take it out on the road and I find I'm back to square one where I've got no pulling power.  (The bike not me...... that sound's conceited).
My next step is to try to borrow a strobe and check the timing. 

[Chris400F]

The only important bit is that there is an insulator either side of the back plate bracket with nothing in between.
The rest can be in any order, although having the bolt head at one end and the nut at the other is probably a good plan.

[Trigger]

None whatsover mate, the wires are connected together by the bolt (also to the points spring) but insulated from ground(Back plate post) and you can put them in whatever order is easiest, i was listing from geriatric memory!!

Cheers for putting my geriatric mind at rest mate

[Rob.b (Rob Birkett - RIP)]

Wired up as Bryanj laid out, starts, revs and ticks over just fine.  Take it out on the road and I find I'm back to square one where I've got no pulling power.  (The bike not me...... that sound's conceited).
My next step is to try to borrow a strobe and check the timing.

Hi,

I was on my way home from Horncastle to Cheshire last night at about half eleven on my CB500, going like a good'un over the 'Cat and Fiddle' no traffic eerie mist in my headlight beam, wonderful!  Then all of a sudden a little misfire then a big misfire; bloody brilliant !  Any how I stopped; the bike ticked over perfect, revved freely on the stand, so I tried to set off again. No way would it behave under load.  I took off the points cover and the cylinder one and four points were a festival of sparks (lucky it was dark). Fortunately I always carry a set of points and condensers amongst other useful things, I banged on a new condenser and hey presto we are off again running great.

So I recommend you try new condensers especially as there may have been shall we say some 'unusual wiring' in the recent past.  By the way the one that packed up on me was about 6 months and 2000 miles old it was made by Daiichi, but it was cheap so its not all bad news.

PS I don't use a strobe to set my timing I Just do it by the Haynes Manual method. Seems to work.

Good luck,

Rob

PS. how are the new screw drivers ?

[Nurse Julie]

Oh dear Rob, what a pain. Are you sure it wasn't that dodgy speedo cable playing up ?

[Rob.b (Rob Birkett - RIP)]

Oh dear Rib, what a pain. Are you sure it wasn't that dodgy speedo cable playing up ?

Ah Yes that would explain it, and I wasn't the last to touch that was I.

Cheers

Rib

[Nurse Julie]

True Rob, it was someone else that had the last fiddle 

[LesH]

Condensers are new replacements from DSS........... It was one of my first suspicions......... suppose I could have been unlucky and got the only two new dodgy DSS ones on sale !! 

PS One driver arrived from Japan super quick but the other one I'm still waiting for (unbeknown to me a different supplier) but I must admit a very nice fit...... work a treat.