Author Topic: Good Battery/Dead Electric  (Read 350 times)

0 Members and 1 Guest are viewing this topic.

Offline Rabblerouser

  • Bungling along towards competance
  • Full Member
  • *
  • Posts: 3
Good Battery/Dead Electric
« on: September 13, 2011, 12:29:25 PM »
Hi all...

This '78 Honda Hawk (CB400t II) is my first bike and I am learning as I go...

I've had the bike for about 6 months...sorted out a few issues and it's been running well ever since...until the other day the electrical system "died"...

A few weeks ago, I let the bike sit for 3 weeks....when I came back from my trip, I was pleased to see that it started up right away with the electric ignition...however, over the following 2-3 weeks, the battery seemed to lose its charge as I often had to kick-start the bike...

Then, after riding somewhere, when I wanted to come home a few hours later, the bike showed no sign of life when I turned on the ignition (no oil/neutral indicators , no starter turnover).  It kick-started and ran fine, but all lights were dead.

As the battery had been weakening, I assumed it had just failed...so I took it to a local shop where they charged it overnight for me and tested it, saying that it was well-charged...I hooked up the battery, and ......nothing. Replacing the main 15A fuse did not help (all 3 fuses appear to be intact).  I haven't dived into the headlight bucket yet but I have looked for obvious loose/damaged wires on both sides of the bike...general condition of the wiring is in decent...

Any idea what may be causing this? Thanks in advance...

Online Johnie

  • Really Old Timer ...
  • *******
  • Posts: 8,614
Re: Good Battery/Dead Electric
« Reply #1 on: September 13, 2011, 01:29:40 PM »
What is the age of the battery? It could be producing volts but no amps. Had that happen to a new battery from Batterys Plus. Try a different battery from a friend and see if you get lights before you go out and buy one. First rule out the battery and proceed from there.
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA