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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #21
Note that there was no20 amp fuse in the bike when I did this check ...
Out of fuses at the moment,
 

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2011 KLR
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209 Posts
Uh, well that is required for the test. The fuze is the bridge between the battery and the bike.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #23
Will check the battery ground at the frame end and try and trace the white wire next.
 

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2011 KLR
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209 Posts
Pull one out from the other fuze block under the seat.
 

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2014.5 KLR650
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133 Posts
Discussion Starter #25
OK, thanks, I’ll use that 15 and retest
 

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2014.5 KLR650
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133 Posts
Discussion Starter #26
OK, 15 amp fuse installed, still -0.00 from white wire to ground.
Checked fuse after test, still good
 

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2011 KLR
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209 Posts
Ok, back to post #20. You should be able to figure that out.

The white wire from the regulator runs back to the starter solenoid where the 20A fuze is, then that red cable from it goes to the battery. And then your ground cable from the battery to the engine block and a smaller black/yellow wire to the frame.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #28
Hold up.
Was doing it wrong ... natch ... white wire to ground gives 12.66
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #29
Used battery neg post for ground
 

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2011 KLR
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209 Posts
Alright then. Get some more fuzes and get them all back into place. Then test the brown buss the same way with key on. While doing that, without starting the bike, try all the ectricals on the bike. Head, tail, brake lights, horn, turn signals, dash.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #32
OK ... should use the frame for a ground then?
Let me know when you get sick of this ....
 

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2011 KLR
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209 Posts
You should do that. It's ok, I'm an avionics technician. This is my life.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #34
White wire to frame gives 12.66
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #36 (Edited)
Brown buss ?
Will need time to fetch fuses, can’t today.
I’ll continue tomorrow.
Thanks a lot for your patience.
Last time I turned the key on, the 20 amp fuse blew.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #37
Gotta stop for today, family life intrudes on the important stuff.
I’ll fetch fuses in the morning and get back at it.
Not having a working bike sucks ...
 

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2011 KLR
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209 Posts
A bus is an electrical highway. Provides voltage to numerous points. The white bus provides a constant 12v from the battery to the ignition switch and 14v from the regulator to the battery and ignition switch. The ignition switch then powers the brown bus, which supplies electrical voltage to the rest of the bike. The ground bus is the black/yellow wire the grounds everything back to the frame -then the battery neg- post. White bus, brown bus, ground bus. Everything else on the bike feeds off these.
 

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Premium Member
2014.5 KLR650
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133 Posts
Discussion Starter #39
So we’re talking about the brown wire coming into the regulator beside the white wire we just tested ?
But with fuses in place and key on ?
 

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2011 KLR
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209 Posts
The brown wire into the regulator "turns on" the regulator when the ignition key is switched on. 12v here says the brown bus powers on just fine.
 
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