02 r6 battery draining : Yamaha R6 : R6 Forum

Ryan1242351 · 12-06-2012, 08:40 AM

I recently bought an 02 r6 and decided to take it for a drive.
First of all I have to jump it every time I start it. I was curious and hooked a tester to the battery after trickle charging it and notice and every 20 seconds the voltage went down by .1 so I was slowly draining itself. Also, the brake light is always on, not the courtesy but the bright one. If I unplug the white/blue connector the brake light will return to courtesy. I tested the switches at both brake levers and they are functioning correctly.
My first question is wether the brake levers connect ground when engaged or vise versa.
And my second question is if the brake light is always on would that mean one of the wires is shorting out, thus draining the battery to the spot of shortage?
I don't know wether to follow the ground or electric. And the wiring diagram doesn't show the blue wire coming from the brake, instead it shows l/r and I'm not sure what that means.
Any help would be appreciated, thanks for your interest.

shnormo · 12-06-2012, 05:09 PM

Constant ground and power is applied with the switch circuit is closed via applying brakes

Ryan1242351 · 12-06-2012, 05:19 PM

So you think the switch isn't shutting off? I tried testing it by putting my tester on the buzzer mode and a wire on ground and other on power coming from the switches. Neither beeped unless I engaged the brake. Not sure if that's how you test it or not. Whatever it is is also draining my battery. Any ideas on where to look?

Thecca · 12-07-2012, 05:45 AM

The brake light is always on even with the key on?? Houston, we have a problem!

Do you have an aftermarket tail light? Check on forum for correct installation?

Ryan1242351 · 12-07-2012, 07:59 AM

I did figure out the lights. The connectors were swapped hehe. But the battery is still draining?!?! And now when I hit the starter button it does nothing .. It clicks when I turn key switch on and all the lights/ guages work but nothing on the starter button.

Ryan1242351 · 12-07-2012, 09:15 AM

Starter is working again, just an unplugged connector. As for the battery draining I'm still not sure. How do I find it?

Thecca · 12-07-2012, 11:08 AM

Check on the forum/google for Stator/Regulator threads, there are many of them.

Might be your battery, might be your stator, might be your regulator, might be your rectifier.

Check easy things first, then hard ones...

EDIT : Take your battery to your local battery shop and ask them for a LOAD test. This will tell if it's still good or not (only checking voltage isn't enough to tell)

Ryan1242351 · 12-07-2012, 06:24 PM

I've got a steady 13.6v coming from the regulator, as far as the stator I unhooked the battery when the bike was on and it continued to run so that should be good. I actually just bought the battery from a shop, so it "should" work. I tried charging up the battery and disconnecting it, returning about 4 hours later and it was at the same voltage as it was before.
The last thing I can think of is to do a parasitic drain test with the battery and fuses. Maybe it's shorting out somewhere? Last thing I can think off so let's hope that's it lol