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Old 12-18-2012, 08:29 PM   #1
1994klr250 OP
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Anyone build there own fuel pump bypass cable?

Has anyone built a fuel pump controller bypass cable? I might be able to get an old controller and use the connector off of it. If I can't get a old one anyone know which bmw p/n is the correct one to connect on the fuel pump? I was planning on putting a SAE connector on it for use with my battery tender harness.
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Old 12-18-2012, 08:32 PM   #2
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Quote:
Originally Posted by 1994klr250 View Post
Has anyone built a fuel pump controller bypass cable? I might be able to get an old controller and use the connector off of it. If I can't get a old one anyone know which bmw p/n is the correct one to connect on the fuel pump? I was planning on putting a SAE connector on it for use with my battery tender harness.
Easier to just buy one
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Old 12-19-2012, 04:18 PM   #3
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Answer: yes

See here: http://advrider.com/forums/showthread.php?t=841433
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Old 12-27-2012, 09:06 PM   #4
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Yes, I just built one. Simple to do. Why anyone with access to an old controller would opt to make a cable that
connects to the battery is beyond me.
PM me for instructions if you want.
Spending 30 or 40 bucks on a cable is not worth it, you can roll your own for free.
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Old 12-27-2012, 10:32 PM   #5
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Quote:
Originally Posted by MikeMike View Post
Yes, I just built one. Simple to do. Why anyone with access to an old controller would opt to make a cable that
connects to the battery is beyond me.
PM me for instructions if you want.
Spending 30 or 40 bucks on a cable is not worth it, you can roll your own for free.
+10
Very simple if you have access to one of the BMW special electrical connectors from a dead controller
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Old 01-24-2013, 07:51 PM   #6
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Plug part numbers

The BMW part numbers for the conectors are as follows.

61-13-8-352-330 Blue plastic housing. Qty 1
61-13-0-007-571 Snap in receptical with wire. Qty 2

These are available from BMW automobile dealerships and cost roughly $12 for all. The wires are 19 inches long and snap right into the blue housing. All that is left to do is either put alligator clips on or install the plug of your choice to match a battery tender type plug.
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Old 03-24-2013, 06:21 AM   #7
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Quote:
Originally Posted by Moqui View Post
The BMW part numbers for the conectors are as follows.

61-13-8-352-330 Blue plastic housing. Qty 1
61-13-0-007-571 Snap in receptical with wire. Qty 2

These are available from BMW automobile dealerships and cost roughly $12 for all. The wires are 19 inches long and snap right into the blue housing. All that is left to do is either put alligator clips on or install the plug of your choice to match a battery tender type plug.
Thank's!

This is the parts described by Moqui:


This is where to connect:


This is my version of a finished cable:

Please note that you can't power the pump from the stock outlet since it will shut down due to (I guess) the high power consumption from the pump.

And this is where my cable will hopefully rest in peace:
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Old 03-24-2013, 07:59 AM   #8
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Lars:

Thanks!
Once the wires are inserted in the plug can the be (easily) removed again?
If not, I am thinking of leaving the plug unassembled to the wires ...

I recall Joel saying that sometimes "jogging" the pump back and forth a bit by reversing the polarity of power to it would get the pump unstuck... so leaving the wires free would more easily allow
the jogging routine...

JRWooden screwed with this post 03-24-2013 at 08:07 AM
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Old 01-24-2013, 11:06 PM   #9
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[61-13-8-352-330 Blue plastic housing. Qty 1
61-13-0-007-571 Snap in receptical with wire. Qty 2]


Cool! Can you please post a picture of it? Thanks.
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Old 01-25-2013, 04:38 AM   #10
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You can look up pictures of the parts on a parts fiche on line.

A duff FPC is free, from that you can easily make a type of bypass that does not have to plug into your battery. Ask around and you will likely find an FPC that has gone south on someone. Having to disconnect the cable every time you stop the motor will get old fast.
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Old 02-01-2013, 03:47 AM   #11
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How many fuel pump controller failures have people experienced? If you are on the road and it fails on you, can't you make your own bypass cable with your failed fuel pump controller connector?

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Old 02-01-2013, 04:44 AM   #12
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Of course you can.
But to do that, you better be sure it is the FPC before you take out the cutters.
Having a ready to go cable will give some people who dont have the best troubleshooting abilities some peace of mind.
Others will appreciate the practicality of not having to do splicing again.
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Old 02-01-2013, 05:33 PM   #13
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How many FPC have gone bad on the F800? If its a small number, I'll take my chances and trouble shoot the bike whenever I have a problem.

David
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Old 02-01-2013, 05:44 PM   #14
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I never thought of making one for my 800.
However, I did, on a trip to Mexico, start thinking that I should learn how to make one for my 1200, as a lot of people said it would fail.
It did. Just moments after I was thinking about it.
However, I was able to get someone to come and lend me their spare.
What he had done was replace his controller before it went out. Then keep the original one as a spare.
I got a new one for myself, and used my old one to make a by-pass.
That way the cable does not have to pass outside the fairing and into the battery, as it does on the ones that you buy.
Most of those tap into the exterior (to the fairing) outlet for accessories.
That seems a dumb way to do it to me.
dc
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Old 03-26-2013, 08:05 AM   #15
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Quote:
Originally Posted by David13 View Post
I never thought of making one for my 800.
However, I did, on a trip to Mexico, start thinking that I should learn how to make one for my 1200, as a lot of people said it would fail.
It did. Just moments after I was thinking about it.
The Twin FPC's don't fail nearly as much as the 1200's do and that's because of location. I posted it here somewhere. The FPC on the twins is under the seat and fairly protected. The 1200's are on top of the tank to the left of the ignition switch and well exposed to the elements. The cavity fills with water and crap which eventually gets past the o-ring on the FPC and fills the void under it causing shorting and failure. And the old silver FPC's were crap.

A lot of the older Twins have the silver controller (like mine) so as preventative maintenance, I check for water in that housing area and dry things off after a wash (meaning rain, it's a GS). Since most of the late model BMW's use the same controller, you might be able to troubleshoot by borrowing one from a sympathetic K, R, or F street bike owner.

Or build yourself a cable.
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