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Old 07-19-2014, 08:10 AM   #1
double_entendre OP
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What are these?

The problem with buying a used bike is you don't know what all has been done to it. To wit, what are these things?







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Old 07-19-2014, 08:16 AM   #2
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Looks like a fuel management set up like installed on some factory dirtbikes...where you change the position of the jumper to change fuel curves...

The other little tool is to remove the oil cap...

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Old 07-19-2014, 08:21 AM   #3
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Look here
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Old 07-19-2014, 08:22 AM   #4
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I agree the first picture looks like an old style fuel management system with a jumper to accommodate different fuel mixtures. The other is like was said, the oil filler tool. But, the wire pigtail looks like the PO rigged up a battery tender to plug in somewhere in the wiring harness and designed it to be removable for whatever reason(s).
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Old 07-19-2014, 09:27 AM   #5
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The cable with the blue connector is an emergency bypass if the fuel pump controller (on the fuel flange) craps out and will allow you to power the fuel pump once you remove the controller.
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Old 07-19-2014, 09:37 AM   #6
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LINK to bypass details...

Quote:
Originally Posted by jzeiler View Post
The cable with the blue connector is an emergency bypass if the fuel pump controller (on the fuel flange) craps out and will allow you to power the fuel pump once you remove the controller.
http://burnsmoto.com/bmw-fuel-pump-bypass-cable.php
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Old 07-19-2014, 09:51 AM   #7
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Awesome folks. Thanks!

Just for the record, the keychain he gave me had the way-better-than-stock'-cause-it-costs-more Touratech oil cap remover. I have changed the oil.
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Old 04-27-2015, 04:34 PM   #8
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Quote:
Originally Posted by jzeiler View Post
The cable with the blue connector is an emergency bypass if the fuel pump controller (on the fuel flange) craps out and will allow you to power the fuel pump once you remove the controller.
Dumb question....dumber question? What are the symptoms of the fuel pump controller crapping out other than a dead engine that could be anything?

Planning a short trip and trying to make sure I don't leave too many stones unturned.

Thanks!
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Old 04-27-2015, 07:01 PM   #9
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Quote:
Originally Posted by double_entendre View Post
Dumb question....dumber question? What are the symptoms of the fuel pump controller crapping out other than a dead engine that could be anything?

Planning a short trip and trying to make sure I don't leave too many stones unturned.

Thanks!
My fuel pump controller died in South Carolina (South of the Border of all places) on the way to Florida back in 2012. I filled the bike up, it started, rode about 5 feet and it died. It would crank but wouldn't start. I had spark and obviously no fuel. Had to have it towed since it was a Sunday. I have one of those Burnsmoto bypass cables now

The problem with mine was water inside the fuel pump housing due to the o-rings at the top having been installed incorrectly. I left the bike on the center-stand overnight and it started in the morning (I assume because water moved to the center and cleared the contacts or something), I changed the controller anyway and have kept the old one as a spare.
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Old 04-28-2015, 03:46 PM   #10
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The blue thing under the cap looks like the di-lithium crystal controller on my '01 GS.
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Old 04-28-2015, 05:55 PM   #11
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The blue thing under the cap looks like the di-lithium crystal controller on my '01 GS.
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Old 04-28-2015, 06:29 PM   #12
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Quote:
Originally Posted by BeachMoto View Post
My fuel pump controller died in South Carolina (South of the Border of all places) on the way to Florida back in 2012. I filled the bike up, it started, rode about 5 feet and it died. It would crank but wouldn't start. I had spark and obviously no fuel. Had to have it towed since it was a Sunday. I have one of those Burnsmoto bypass cables now

The problem with mine was water inside the fuel pump housing due to the o-rings at the top having been installed incorrectly. I left the bike on the center-stand overnight and it started in the morning (I assume because water moved to the center and cleared the contacts or something), I changed the controller anyway and have kept the old one as a spare.
I have seen two fail, one was loaded with water and corroded and the other was dry and looked perfect. The one that looked perfect ran fine and then quit cold, the other one would quit but then restart and run a few hundred yards and quit again until it finally would not restart. I tried to clean up all the corrosion on the connectors but even with everything cleaned it was still not functional.
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