158mm x 50mm

http://www.ebay.com.au/itm/0580-464-998-BOSCH-FUEL-PUMP-NEW-GENUINE-BOSCH-0580464998-0-580-464-998-/181217970013?pt=AU_Car_Parts_Accessories&hash=item2a316ec75d
I offered $40 and they accepted.

The correct one should be 52mm
http://www.ebay.com.au/itm/fuel-pump-BMW-K75-K100-LT-RS-K1100LT-K1100-16121461576-0580463999-52mm-/171258631122?pt=AU_Motorcycle_Parts_Accessories&hash=item27dfcf53d2

I will use a cable tie to squeeze the rubber holder tight onto pump.

good buy waz
id be interested what it draws (amps) when doing its job

cheers

I will check and let you know.

That's a good find Waz, I just bought one, he excepted $35.00.
Good spare to have, because it will also fit the ford.

I just tried $30 see what happens

I should buy another at that price, I think you'll get it for that Rick. It would have to cost him about $13.00 just for postage, so makes it a very cheap fuel pump.

He spat the bait out at $30 so I took it for $35. He must have bought them cheap if $35 is acceptable.

I grabbed one at $35 too, thanks for the heads up.

The pump in the sidecar seems to work fine, but is very noisy when the fuel level is low.

Al

I am new to rebuilding motorcycles.
I do need a fuel pump for a 1985 K100RS. Do you think this will have the correct pressure and flow for the K bikes?
In the post it only mentions that one would have to modify the the mounting to adjust for the smaller diameter?
I have asked the supplier  if they would ship to Canada and am waiting for a reply. If they won't do that is there a good fellow in Australia that would take receipt of it for me and then ship it to Canada? I would send the postage money to have it shipped or does Australian postage make it prohibitive to do this?
Thanks
Shep

I would be willing to do it for you.
Australia Post says $37 with post and tracking about 1-2 weeks depending on load  or $20 sea mail about 8 weeks
I reckon Duck would get as good a deal in US for you.
Calling Duck Quack! Quack!

My fuel pump arrived and it is 52mm. Same size as the origional.
Fitted perfect. Still looking for my multi meter with DC amps. Will check at fuse with it when I find it. Using a clamp meter both drew 4 amps on start up then run at 1.4amps when running.

NICE result Waz

thanks for the feedback about the current draw ...could prove to be very useful ....one day

Bonus Waz, mine arrived yesterday as well, haven't checked it for size, but did order another ,as I love a bargain .

Looks like he has plenty left, may as well grab one while the goings good  

damn looks like all sold....

I agree, darn I waited too long and mine just crapped out yesterday!!

It's not always that good things come to he who waits 

Found dc amp meter it draws 4 amps.

Can't recall where but I saw Bosch quote them at 5 amps