Timing problems on the 450 Bomber

[K2-K6]

Black and white is switched supply + to the coils.

Blue and yellow are the earth route that go straight to the points for triggering.

Condenser "taps" into each of the blue and yellow wire (one for each coil) anywhere convenient to connect them, depending on wherever the connection are located. The four cylinder bikes have them right next to points for example, as the twins often located up near the coils.

[royhall]

If I remember correctly there are double female bullet connectors blue and yellow on the harness, the condenser plugs into those. Can't see from my photos as I have EI fitted so no condenser.

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[mo goldie]

Are ok guy`s well here are where things might have gone wrong then......

as I thought the black and white were earths so when i connected the E/I up i put them to earth and the blue and yellows to the live on the Modules .........if that is he case then I was just NOT getting power to the coils would you say that is right ?

so it might be that the E/I is ok after all ?

oh something else to try out first ha 

what a numpty if that is the case 

oh there is No blue/yellow coming out of my wiring harness Roy just the black and green that power the horn which the coils get there power from...... but I did think the two black and whites were Earth ......oh well you will Now tell me if that is right ha lol.

yes Roy they are new coils ..well new to me they were on the bike when I got it.....if they are ok I have just got a new pair as well now

[Bryanj]

Black/white comes from kill switch and should have a double connector where it exits the loom near the coils and both black/white from coils plug in there
Either condenser blue and yellow OR coil blue and yellow have a double connector and the coils, wire from points and wire from condensers connect colour to colour at that point.
Just for info the points plate assembly on a gl1000 is the same as 450 twin and 500 twin, not sure about condensers

[K2-K6]

Are ok guy`s well here are where things might have gone wrong then......

as I thought the black and white were earths so when i connected the E/I up i put them to earth and the blue and yellows to the live on the Modules .........if that is he case then I was just NOT getting power to the coils would you say that is right ?

so it might be that the E/I is ok after all ?

oh something else to try out first ha 

what a numpty if that is the case 

oh there is No blue/yellow coming out of my wiring harness Roy just the black and green that power the horn which the coils get there power from...... but I did think the two black and whites were Earth ......oh well you will Now tell me if that is right ha lol.

yes Roy they are new coils ..well new to me they were on the bike when I got it.....if they are ok I have just got a new pair as well now

Possible then that you've reversed polarity within the E I that may not allow switching of coil load to take place. The triggers are directional, so it may be such that it's not working because of this swap.

Worthwhile setting them now with this info to see if they chime in.

[mo goldie]

Are ok thanks K2.... so it is that they are + to the coils then just to be clear ?

[royhall]

That's an understandable mistake that's been made by many people. There's only Honda could use a black wire for a switched live. Goes against just about every wiring convention ever. In fact it's a bloody stupid idea. Hopefully you've found the mistake and it's now going to work.

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[mo goldie]

well keep my fingers crossed that is going to work now,
I will try putting the E/I back on with the wires B/w in the right place just hope I have Not damaged there Modules putting it the wrong way round,

if that is the case that I got it wrong I am glad I am Not the only one done that Roy, just hope as I say I can come back on here and say to everyone its all working....... will Try that out very soon,

Oh sorry Bryan but they don`t have a kill switch on a black Bomber 

[Bryanj]

Never had one so didnt know that, Roy you obviosly not worked on  citroen 2CV or Ami 8 ALL the wires are Yellow with letter/number tags on the end, really good after 5 english winters!

[mo goldie]

are look what I just found............ they said the wiring Dia was in with the kit well it was Not as if it was I would have done this ........... so have a look ..tells a story ha

Knowledge ha as I said will give it a go and see if its works Now..... Now off to bed now i need a lay down LOL 


 https://drive.google.com/file/d/1AEyHVfdNqkb4jftnu1B-2Vgs2qu_yUCR/view

[royhall]

Never had one so didnt know that, Roy you obviosly not worked on  citroen 2CV or Ami 8 ALL the wires are Yellow with letter/number tags on the end, really good after 5 english winters!

The French never did get wiring right including some very modern stuff. They probably got a cheap price on a huge drum of yellow wire.

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[royhall]

Just a thought. The problem is only half way sorted, you still have to deal with the rotor alignment issue. Hopefully it was caused by the wiring mistake, good luck.

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[mo goldie]

hi everyone ...... Well you want the good news ...Well there is NONE it still don`t spark...even tried one of the brand new coils and nothing...........getting a bit down in the dumps now as thought we had found the problem...... well the only thing I can think of now is that it is them pesky Modules...... I can`t be bothered Now to put back the points..... just got me beat.....and that is Not right for me ............ But Ha Ho ............ just have to keep a stiff upper lip ha.       

[McCabe-Thiele (Ted)]

It might seem a backwards step, I would re-fit the CB plate etc to at least have it running again.
If it runs then you know the coils & wiring are all working as it should.

In the meantime get the supplier of the Electronic ignition to either refund or replace.

"Nilus Carborundum Bastidio"

[royhall]

Been saying to go back to points from the start to prove the bike. Reverse connection may have goosed the EI.

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