SOHC.co.uk Forums > The Black Bomber Board
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 ;D
what a numpty if that is the case :o
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:
--- Quote from: mo goldie on December 03, 2023, 06:37:36 PM ---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 ;D
what a numpty if that is the case :o
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 :)
--- End quote ---
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.
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