Author Topic: Just bought 1977 Honda CB400f Four  (Read 713 times)

Offline HondaCB400Four

  • Posts: 1
Just bought 1977 Honda CB400f Four
« on: May 29, 2016, 23:26:51 »

Hey everyone, just picked his up. Has spark, compression. Anyone have a wiring diagram to show how the killswitch should be wired? Its all cob jobbed up and might be my issue why it wont start.

Thanks, T

Sent from my SAMSUNG-SM-G930A using DO THE TON mobile app

Offline vandito.cb

  • Posts: 222
Re: Just bought 1977 Honda CB400f Four
« Reply #1 on: May 29, 2016, 23:55:34 »
there should be two wires running to the killswitch.

one black, a switched power wire activated by the key.

note that you'll find a few of these as it is a means of providing power to any accessories contingent upon the ignition switch being on.
one black/white, a power wire that ultimately splits in two and feeds each coil.
- vandito.cb

Offline advCo

  • *
  • Posts: 3220
  • Nick Ol' Eye
    • adventur Studios
Re: Just bought 1977 Honda CB400f Four
« Reply #2 on: May 30, 2016, 00:24:38 »
Yeah. You can jump the black and black/white wires together and bypass the switch, if it starts when you do that then that's your problem.

Nice buy. These bikes are rare and will fetch a pretty penny in restored stock condition

Sent from my iPhone using DO THE TON