View Full Version : Replaceing Rear Brake light switch


chachi
24th January 2006, 18:09
Hiya boys, I'm back.

So all of the help you guys have given me to date
has been bang on the money. I'll start with
reporting what I've found and fixed and move on
to my question.

I started with no brake light and no left running
light and no turnsignals. Bulbs were brand new
so that wasn't the problem.

1. Fixed the running light by crossing the wires to
the turnsignal they were wired backwards when I
bought it.

1b. Later found that the back tire had been rubbing
the wires under the fender so although it wasn't the
cause yet it soon would have been if I didn't catch it
and re-run them.

2. Fixed the turnsignals by replacing the relay in the
headlamp

3. Fixed the front brake light by tracing the red wire
from the front of the bike to the back and found a
split wire. soldering it fixed that.

4. After much pocking and proding with my trusty
VU Meter found that the resistance on the bulb is
2 Ohm and the risistance coming from the rear switch
is over 50 Ohm.

My question.

1. That means my rear switch is fubar and needs to
be replaced right?

2. Because it seems to be a hydralic switch, How hard
is it to replace myself?

3. If it's something I shouldn't be doing myself as I'm
a REAL NOVICE in the way of wrenching how much
should I expect to pay to have it replaced? ie How long
would it take the dealer to fix.

Thanks again.
chachi

PS

I have more to report so stay posted :) Got a Chrome
oil tank amd shorter shocks to install and I think My
float bowl valve is gumed up because it pisses fuel
when I turn the pet cock on. grumble grumble grumble.
I bought a new gasket and will be fixing that soon. I'll
let you know how it goes.

chickenfax
25th January 2006, 13:25
So does your brake light work using the front brake and not while using the rear brake?

Have you determined it is *not* wiring to the rear brake?

And finally, I assume you have a service manual. I can't imagine that replacing the rear brake switch would be that difficult. It would save you 60 bucks an hour.

Sorry I couldn't be more help. I don't have SM in front of me.

chachi
28th January 2006, 08:20
I have infact determined that it is the switch and not the wiring. I would try to replace the switch on my own but am concerned about it being hydrolic. last thing I want to do is screw up my brakes.

Chachi

loudpipesportster
29th January 2006, 05:14
disconnect the 2 wires on the switch and touch them together.if the brake light comes on its the switch.if not then its something else.changing the switch is very simple.it only drips a cpl times before you replace with a new 1.also i was having trouble with mine and strange as it sounds the brakes wasnt bleed enough to cause enough pressure to trigger the brakelight.