Author Topic: cb 750 k4 electrical no power  (Read 1092 times)

0 Members and 1 Guest are viewing this topic.

Offline neil10

  • Hot Shot
  • ***
  • Posts: 315
cb 750 k4 electrical no power
« on: September 13, 2012, 04:57:37 PM »
cb 750 k4 electrical no power
mine has 3 fuses
power to bottomfuse  no power to other two fuses
no power to ignition switch
solenoid has power

 fuses are ok
help
« Last Edit: September 13, 2012, 09:35:07 PM by neil10 »

Offline neil10

  • Hot Shot
  • ***
  • Posts: 315
Re: cb 750 k4 electrical no power
« Reply #1 on: September 13, 2012, 09:36:15 PM »
an y idea

Offline Spanner 1

  • Old Timer
  • ******
  • Posts: 4,092
  • CB 750 K0 ( always thought it was a K1!) + CB750K8
Re: cb 750 k4 electrical no power
« Reply #2 on: September 14, 2012, 07:53:19 AM »
Main fuse.... power to main fuse and zero on the red wire @ ign. switch = main fuse. The fuse element is 'prolly broken under one of the caps where you cant see it ( caused by old age/vibration over 40 yrs ! ).
And/or corroded fuse holder. The fuse clips must be shiny brass colored or no good and each clip must grip the fuse tightly. The other 2 fuses are not 'live' until you switch 'on' the ign., so normal  :)
If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline neil10

  • Hot Shot
  • ***
  • Posts: 315
Re: cb 750 k4 electrical no power
« Reply #3 on: September 14, 2012, 04:30:36 PM »
I have power to main fuse, but not to the top two I turn on ignition no power to top 2 fuses

Offline Spanner 1

  • Old Timer
  • ******
  • Posts: 4,092
  • CB 750 K0 ( always thought it was a K1!) + CB750K8
Re: cb 750 k4 electrical no power
« Reply #4 on: September 14, 2012, 06:34:04 PM »
Do you have power to the Red wire @ the ign. switch ??
If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline neil10

  • Hot Shot
  • ***
  • Posts: 315
Re: cb 750 k4 electrical no power
« Reply #5 on: September 14, 2012, 06:41:45 PM »
no power to ignition,  take of connection wires to ignition nothing

Offline Davidov

  • Hot Shot
  • ***
  • Posts: 284
  • 1978 CB750 F3
    • My CB750F project log
-David

Offline Spanner 1

  • Old Timer
  • ******
  • Posts: 4,092
  • CB 750 K0 ( always thought it was a K1!) + CB750K8
Re: cb 750 k4 electrical no power
« Reply #7 on: September 14, 2012, 07:33:22 PM »
Main fuse/ corrosion/holder..... or do what ever ya want. ::)
If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

bollingball

  • Guest
Re: cb 750 k4 electrical no power
« Reply #8 on: September 14, 2012, 08:30:08 PM »
no power to ignition,  take of connection wires to ignition nothing

You want to translate this???
Ken