Looks like I have a bad fuel pump.  I swapped tanks out with another, and the fuel pump works flawlessly.  That tells me it's getting the connections it needs to on the bike itself.  Removed the bad fuel pump, and it is completely seized up.

I know this topic has been gone over before, but I can't find any recent threads on it.  I've found a few ebay listings that are very cheap (which should be a call to warning I'm sure).

https://www.ebay.com/itm/Intank-Fuel-Pump-fits-1983-1984-1985-1986-1987-1988-1989-BMW-K100RT/253110360905?epid=2201714763&hash=item3aee8d9b49:g:33oAAOSw~RNZnPZA

https://www.ebay.com/itm/Fuel-Pump-For-BMW-K100-K100LT-K100RS-K100RT-K1100LT-K75-K75S-16121461576/172892474488?hash=item284131cc78:g:NqcAAOSwg0BZzfvy

I'd like to get something that is as drop in ready as possible, WITHOUT shelling out crazy amounts of cash to a dealer.  I'm hoping a drop in ready version can be had less than $100 USD.  Has anyone had good experiences with a particular brand/model of pump?  Links of where you purchased would be a big plus.

Thanks all!

A while back I installed a Japanese-made Kemso, purchased from eBay for under $30.00, in my R1150RT. It hums away down there quietly and does the job as intended. They're now just under $36.00. It's a replica of the OEM in size and with o-rings, sock filter, clamps and hose included. Hell, for under $30.00 buy two for your K and have a spare in case the first one dies a death prematurely. Just be sure it's the correct diametre for the rubber damper, or an appropriately sized sleeve is included.
I think you've already found the answer to your question.

As a experiment I have been against the advice of some been running a Chinese copy of the OEM pump cost $36.00 Au. I went with a supplier that also manufactures, hoping that this would be better. I do however carry my old pump that has been cleaned, lubed and sealed in the tail. Be aware that all pumps are not created equal and some are dodgy. My pump so far has had no issues and has been installed for nearly 12months. http://www.motobrick.com/index.php/topic,10054.msg85798.html#msg85798
Regards Martin.

Take your pick

ALFA ROMEO 33 Alfetta 75 90 GTV Spider

BMW M3 E30 M5 E28 318i 320i 323i 325e 325i 520i 525e 528i 535i 633Csi 635Csi E23 733i, E23 735i

CITROEN

FIAT Argenta Brava Regata Strada Ritmo X19

JAGUAR XJ6 XJs Sovereign

LANCIA Beta Delta Gamma Prisma Trevi Y10 Turbo

LOTUS Esprit Turbo

MASERATI Bi Turbo

MERCEDES-BENZ

MG Metro Turbo Maestro Montego

MITSUBISHI Colt Turbo Lancer

OPEL Ascona Corse Kadett Manta Monza Omega Rekord Vectra

PEUGEOT 205 309GTi 405 505

RENAULT R5 Turbo R11 Turbo R18 Turbo R19 R21 Turbo R25 Turbo Espace Quadra Fuego

ROVER SD1 Vitesse 3500 Vanden Plas RANGE ROVER LAND ROVER 3.5 & 3.9 EFI

SEAT Ibiza Malaga

VOLKSWAGEN Transporter Caravelle

Mapco 22301

 

 

Fuel line is SAE30R10 8mm

Good list, Rick, but 90% of those vehicles never made it to the US.

Given pumps fail with debris, it might be worth checking this out, I know second hand but in your price range.
https://www.motorworks.co.uk/vlive/Shop/Parts.php?f=b&T=6&Q=16121461576&q=16121461576&NUFilter=10&Filter=submit

Two Wheels Better wrote:Good list, Rick, but 90% of those vehicles never made it to the US.

If they had good fuel pumps they migh have got there

RicK G wrote:

Two Wheels Better wrote:Good list, Rick, but 90% of those vehicles never made it to the US.

If they had good fuel pumps they migh have got there

Cue WC Fields voice: "Little humour there, very little."