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Wiring problems with my 1977 CB750F1

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Yoshi823:
In which case it sounds like the earth from the plate inside of the switchgear to the handlebars is not too good. Check the continuity from the metal of the switchgear to the -ve side of the battery. I think that the left hand switchgear also earths the metal of the case to earth via the handlebars.

Easy enough to check as long as you have a multimeter or a continuity checker.

Stewartgh:
OK, Insanity is looming now.....!!! Right I have now disconnected everything in the headlamp, except the brown feed to the 'P'/sidelight and the green ground for the same, still no light when switched to the 'P' position on the RH switchgear, but when I swith the indicators on either side it lights up! Despite the fact that now all the indicators front and rear are completely disconnected. I have dismantled, cleaned and checked out with the meter both handlebar swicthes and the ignition switch, cleaned every connector I can lay my hands on with switch cleaner but still no joy!!! Any further help would be very much appreciated.

Stewartgh:
WoooHoooo!!!!!!!!!!!!!!!! Yes you guessed it, I fixed it, well it seems I actually caused it in the first place, since I stiped everything down over a year back when I restored it, and surprisingly it passed an MOT then with no mention of the problem,  but for sure it had been there all along, I just hadn't noticed it, till this years MOT...... long story short in the connector box under the stearing head there are a bunch of connections, I had the feed to the RH Switch mixed with the turn signal buzzer, they are both the same colour code (Br/B) but one has a little yellow tag which had slipped up into the loom exit point out of sight!!! So about 15 hours greif as a result of my own cock up..... Thanks for your help Den & Yoshi got me going in the right direction, off to get the MOT finsihed off then I'm on the road..... :) ;) :D ;D 8)

Spitfire:
Great that you got it sorted,that connection box is a pain and the buzzer wire can be confusing.

Cheers

Den

SteveD CB500K0:
Another satisfied customer   :)

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