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Discussion Starter · #1 ·
What is the "back up" fuse for on my '07 fjr? It has full time power but can't figure out what it powers. I am still chasing a power draw and I am wondering if it could be the culprit.
 

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2006 FJR1300 AS - Orion The Hunter
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Backup Fuse = Odometer, Clock and Windshield.
 

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Discussion Starter · #3 ·
Ok. Thanks. In checking power at the fuses, with the switch off, that's the only place I find power so I am wondering if that is what is draining the battery.? But it shouldn't drain it in a week or two should it?
 

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Do you have any aux equipment? Even a small 12 volt to usb can drain a battery in short order.
 
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There is a constant small parasitic draw to keep the clocks, etc. alive..... if your bike is going to sit a week or more, recommend plugging it in to a Battery Tender.
 

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2016 FJR1300 ES
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Check the current with ignition off - that's the only way to determine if the draw is unexpectedly high. I can leave my 2016 (with original battery) in the garage without a battery tender for a month or more and it always fires right up.
 

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What is the "back up" fuse for on my '07 fjr? It has full time power but can't figure out what it powers. I am still chasing a power draw and I am wondering if it could be the culprit.
Schancey,

Do you have a multimeter? If so, rig it to read Amps/milliAmps. Install the Ammeter between one battery terminal and the cable that should go there. An Ammeter is a dead short, so it works like an extension cable on the battery wire, passing power to the bike. With everything OFF, the Ammeter should show only a tiny drain, just a few milliAmps to run the clock and bike memory. If you see a significant drain (100s of milliAmps or more), there is your power leak. Remove one fuse from the bike, and check the Ammeter. No change in the reading? Replace that fuse, and pull out the next fuse. Continue this process until you find the one fuse that allows the heavy drain to happen.

This process will eliminate most of the bike electricals from the "suspect list." Track down whatever items that last fuse runs, such as lights, horn, et c.
If you do not have a multimeter, you can use a small instrument light bulb instead, with one side of the bulb connected to the battery terminal, and the other side of the bulb connected to the battery wire. If the bulb glows at all, it will do the job. You may need to shade the bulb in a dark tube or box, to see a dim glow happening. Just follow the process above, looking for the fuse that puts out the light when that fuse is pulled.
Happy hunting.
 

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2008 FJR
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Check the current with ignition off - that's the only way to determine if the draw is unexpectedly high. I can leave my 2016 (with original battery) in the garage without a battery tender for a month or more and it always fires right up.
Same here - my "winter storage procedure" for the FJR is to pull it into the garage and remove the key (usually late October, early November). De-winterizing involves turning the key and pressing "start" on the ignition sometime in March. It's been years since I've plugged a battery into a tender over the winter.
 

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2006 FJR1300 AS - Orion The Hunter
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Dang!! Must be the cold in the North that keeps your batteries!

Down here in Texas... we can kill batteries faster than you can say, Hee Hah!

If I think Orion is gonna be more than a week, before I ride again, on the tender it goes!
 
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IMHO it depends on the battery. The early Gen2 OE batteries could go months without a tender. My '07 was routinely parked from late Nov to mid March without one for 7 yrs and always fired right up in the spring. But that battery also lasted 10+yrs. Changing the battery changed all that.
 

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Discussion Starter · #11 ·
Thanks for the replies. I have done a bit of testing with the meter and haven't found anything yet, although I am not sure I am using the meter correctly. I will try again as suggested here. Very frustrating!I love this bike. I will post if I can find the problem.
 

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2016 FJR1300 ES
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Thanks for the replies. I have done a bit of testing with the meter and haven't found anything yet, although I am not sure I am using the meter correctly. I will try again as suggested here. Very frustrating!I love this bike. I will post if I can find the problem.
The easiest way to measure current is to get one of those with a "loop" that you simply put over one of the wires - e.g. the negative lead from the battery. It's essential that the loop only covers one main wire.
 

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Discussion Starter · #13 ·
Well the plot thickens! As I was trying to put a relay (fuel pump?) Back in the basically unreachable place I took it from, right in front of the battery, I noticed two objects (modules?) Just laying just inside the fairing between the fairing and the battery . Not fastened in any way just resting on a tube of the fairing frame. It is so tight in there that they couldn't fall out but I find it hard to believe yamaha did this.? Both are black "plastic ", one is about 1"×1"×3" long, the other about 1"×2"×4" longa wire runs between them then a bundle of 4 small gauge wires disappears into the fairing. WTF!? Anyone else seen this?
 

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Versys 1000, VFR800
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I think we need a picture of that..... not ringing any bells just yet......
 
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I don't recognize it...... I had a PC and don't recall anything like that...... but I had the simple version, no Autotune or map switch. I guess all you can do is keep digging into where those things are connected.
 

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Could that be parts/ballast of LED or HID bulbs?
 

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2008 FJR
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That's a LOJACK device. No surprise it's draining the battery as it needs to be constantly sending location data.

I just googled the FCC ID on the box.

 

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Discussion Starter · #20 ·
Wow! I guess that's the problem then! I'm not in a high theft area especially for this style bike so even though I wouldn't mind having it on the bike, I will delete it and hopefully that will end this nightmare I have been chasing. Thanks SO much for your help! Now, if I can get power to the fuel pump I'll be ready to go. I pulled the 3 relays in front of the battery and they are good. I also put power straight to the fuel pump and it is good just have to find out where the problem is between the relay and pump. Once again thanks.
 
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