Author Topic: Clean your switch contacts  (Read 190 times)

Online Greybeard

  • Jack of all trades; master of none.
  • Wise & Enlightened
  • *
  • Join Date: Feb 2011
  • Posts: 7333
  • Karma: 40
Clean your switch contacts
« on: 15.07. 2021 23:16 »
I've noticed that the headlamp on my bike has been rather dim lately, even after charging the battery. I haven't ridden at night for a long time, but I do like to have the headlight on when I'm on fast roads. I bought a can of electrical contact cleaner and gave the light switch contacts a good going over. The headlamp is now back to it's old brightness. The horn was also rather weak so I cleaned the horn connections and used the spray on the handlebar button. Much better now. 👍
Greybeard (Neil)
1955 Golden Flash, sprung frame

Warwickshire UK

A Distinguished Gentleman Riding his 1955 Plunger Golden Flash

Offline BSA_54A10

  • Wise & Enlightened
  • *
  • Join Date: May 2008
  • Posts: 2167
  • Karma: 34
    • BSA National
Re: Clean your switch contacts
« Reply #1 on: 17.07. 2021 14:30 »
A few times when riding the M20 at night people would come up and ask what globes I was running because the were so bright.
The next time ( usually the following morning ) I would remove the headlight and show them the voltage at the globes terminals, a full glorious 6 Volts & some times even 6.3
Then we would go back to their bikes and do the same, seldom over 4 V
It does make a big difference.
The other thing I have found is replacing the ball in the switch and even adding a bigger spring to make harder contact can make a big difference but don't over do that as you can bend the contacts outwards.
Bike Beesa

Offline Butch (cb)

  • Wise & Enlightened
  • *
  • Join Date: Aug 2010
  • Posts: 1664
  • Karma: 16
Re: Clean your switch contacts
« Reply #2 on: 19.07. 2021 16:31 »
When I wired mine I did buy some 6V relays in anticipation or needing them, but so far haven't found the need. Not that I do much night riding.
Warning - observations made by this member have a 93% unreliability rating.

Of Bikes; various, including ...
'58 S/Arm Iron Head Flash Bitza