« previous next »
Pages: [1]   Go Down

Author Topic: Electrical problem.  (Read 992 times)

0 Members and 1 Guest are viewing this topic.

Offline aussie rob

  • Full Member
  • *
  • Posts: 5
Electrical problem.
« on: April 12, 2018, 06:57:33 PM »
Good evening guys, hoping someone might be able to throw some light on what I might be looking for here. My 72 750 ran fine last fall and started during the winter when I tried it. Last week I installed a trickle charger now I have no lights on the dash, nothing comes on. The battery is fully charged showing 13 volts. The fuse under the left side cover tests good. I'm new to this bike, are there other fuses I can check? I must have done something when I installed the trickle charger wire but I don't know what. Any help or suggestions will be greatly appreciated. Rob.
Logged

Offline aussie rob

  • Full Member
  • *
  • Posts: 5
Re: Electrical problem.
« Reply #1 on: April 12, 2018, 07:36:29 PM »
So I have good news, I just put the battery back in and low and behold...everything came back to life, turned the fuel on, gave it some choke and it fired up second crank. I have no idea why it all of a sudden came good but I'm thankful for sure. I did clean the battery terminals really well, could have been the problem. This weekend, we ride :)
Logged

Offline disco

  • Hot Shot
  • ***
  • Posts: 571
Re: Electrical problem.
« Reply #2 on: April 13, 2018, 04:14:24 AM »
Rob, the fuse holder terminals need to be clean! I mean really clean! Roll up some sandpaper and get to work making nice & bright, so there’s good contact.
Logged
1976 CB750 K6 Sapphire Blue
1972 CB750 K2 836 Orange Sunrise
1972 CB750 K2 Candy Red
1972 CB750 K2 Candy Gold'

Offline evinrude7

  • not a kung-fu
  • Master
  • *****
  • Posts: 2,099
  • something to hüsker
Re: Electrical problem.
« Reply #3 on: April 13, 2018, 06:03:32 AM »
ignition switch wires come to mind. 
Logged
cb750 k6 - ugly

Offline TwoTired

  • Really Old Timer ...
  • *******
  • Posts: 21,802
Re: Electrical problem.
« Reply #4 on: April 17, 2018, 02:57:46 PM »
Quote from: evinrude7 on April 13, 2018, 06:03:32 AM
ignition switch wires come to mind.
...Or the switch contacts.  Sometimes cycling the switch a few times teaches it to function again.

Cheers,
Logged
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.
Pages: [1]   Go Up
« previous next »