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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: kris on February 01, 2015, 10:08:49 AM

Title: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 01, 2015, 10:08:49 AM

Hi all,
Does anyone know where to source a new fuel sender unit for an '86 K100RT? Mine is rusty as hell and thought I'd change it out while I'm at everything else. Also, the rear tank pad came off. The factory adhesive had turned to slime. What have others used to re-attach this thing/ knee pads, etc.?

Much appreciated!

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 01, 2015, 05:01:05 PM

Your BMW dealer can order one...

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 02, 2015, 09:11:02 AM

Hi Brad-Man,
I appreciate the reply. I absolutely figured that but thought there might be someone out there with a salvageable part for less than $131. In fact I am going to try to re-wire the damaged part. It's worth a shot. It's very fine angel hair type wire. Not sure if I'll be able to source it or not.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 02, 2015, 09:24:32 AM

http://www.ebay.com/itm/1991-91-BMW-K75RT-K75-RT-K-75-Fuel-Sensor-Gauge-Lever-/161520755841?pt=Motorcycles_Parts_Accessories&hash=item259b632481&vxp=mtr (http://www.ebay.com/itm/1991-91-BMW-K75RT-K75-RT-K-75-Fuel-Sensor-Gauge-Lever-/161520755841?pt=Motorcycles_Parts_Accessories&hash=item259b632481&vxp=mtr)

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: rbm on February 02, 2015, 12:38:28 PM

Kris, Snap that bugger up immediately!!  That price for its condition is amazing.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 02, 2015, 07:33:44 PM

Thank you Brad-man!!

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 02, 2015, 09:25:40 PM

yw!

That's cheaper than I paid for one...

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 02, 2015, 09:59:45 PM

Trying to see if he'll ship to Canada...closed at the moment but thanks so much for the heads-up. Kind of you.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 03, 2015, 04:45:16 PM

I've gotten so much help here I was glad to be able to...

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: mw074 on February 04, 2015, 01:55:20 PM

3M Super Weatherstrip Adhesive for the tanks pads.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 04, 2015, 04:23:46 PM

thanks so much...ended up going with silicone...should hold fine

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 05, 2015, 02:40:48 PM

The fuel sender guy wouldn't get back to me and it's gone. I now have a New York address I could have had it shipped to....c'est la vie. I'll keep shopping or maintain my efforts to repair the one I have.


Thanks so much. This is quite a community of good people!!

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Elipten on February 05, 2015, 02:46:18 PM

Just remember the bulk of that unit is to send a signal to a fuel gauge most bikes don't have, the other option is to trigger the low fuel light and to get power and ground to the fuel pump.  The first two well one can live without, the last is required to operate.   So one can make do.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 05, 2015, 04:33:40 PM

Thanks for your note. Yes, I am aware of the functionality of the total unit. In a pinch I'm good with no fuel guage for a period. I'll get there eventually.


I appreciate your comment.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: rbm on February 05, 2015, 07:04:15 PM

Even though your current fuel sender may look rusted and horrid, it probably is still functional.  Refer to my page on Messing with the In-tank Fuel Sender (http://www.k100-forum.com/t9265-messing-with-the-in-tank-fuel-sender) to see how you can renovate it.  The one I used for the photos was pretty bad but it still functioned.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 05, 2015, 10:28:55 PM

Hi RBM, I'm afraid I pooched the fines wires not realizing there were wires under all the gunk. Can I still use it by flipping the board as you've indicated or wouldn't the electrics work at that point?


Thanks,
Kris

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: rbm on February 05, 2015, 10:53:50 PM

Unfortunately, no.  Once damaged, that resistor cannot be repaired and is trash.  Continue your search.  I found a sender from Germany at a good price last year; search for "Kraftstoffmesser Benzinstandgeber".  Here's one I just found:
http://www.ebay.de/itm/BMW-K100-LT-RT-K100LT-K100RT-Kraftstoffmesser-Tankgeber-Schwimmer-/251789113918?pt=DE_Motorradteile&hash=item3a9fccfa3e (http://www.ebay.de/itm/BMW-K100-LT-RT-K100LT-K100RT-Kraftstoffmesser-Tankgeber-Schwimmer-/251789113918?pt=DE_Motorradteile&hash=item3a9fccfa3e)

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 07, 2015, 06:45:55 PM

I believe I have a fuel sender for '86+.. let me check tomorrow. 

Looks like postage to Canada w/b ~$16.55 US...

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 07, 2015, 10:38:55 PM

Thanks Brad-man!

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 08, 2015, 07:38:51 PM

Yeah - I've got one.  I'll check tomorrow to see if it will fit in one of the flat-rate boxes.

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: kris on February 08, 2015, 08:17:54 PM

Hey Brad-man, thanks for checking into it. What would you be asking for this unit?

Thanks,
Chris

Title: Re: Fuel Sending Unit and Tank Pad Adhesive
Post by: Brad-Man on February 11, 2015, 05:12:15 PM

$50 + shipping.

It will fit in a US Priority Flat Rate box!

If you give me the Us address you'll save bucks...

~$17 vs ~$66