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Author Topic: life expectancy for the OEM fuel Pump on a K bike  (Read 2527 times)

Offline pinhead

  • ^ Proficient Motobricker
  • Posts: 167
life expectancy for the OEM fuel Pump on a K bike
« on: May 31, 2024, 04:48:26 PM »
I was wondering about others experience regarding the life of an original fuel pump in a K bike.  Any thoughts or experiences to share?  I have 2 nissan trucks and the original fuel pumps failed in them somewhere between 100 and 120K miles.   
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  • sacramento, ca
  • 1985 RT 100

Offline Chaos

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Re: life expectancy for the OEM fuel Pump on a K bike
« Reply #1 on: May 31, 2024, 05:58:11 PM »
I had over 200K miles on my 86 and the original pump was still running fine.  I'd think sitting in old gas and corrosion would be the main culprits. 
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline Scott_

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Re: life expectancy for the OEM fuel Pump on a K bike
« Reply #2 on: June 01, 2024, 07:51:44 AM »
Agree with Chaos, letting them sit idle kills them the fastest. Other than that, the electrical connections and/or the pass thru(level control) will likely fail 1st.
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  • My Garage
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
1997 K1100LT 0302488 (R.I.P.)
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Offline frankenduck

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Re: life expectancy for the OEM fuel Pump on a K bike
« Reply #3 on: June 01, 2024, 10:56:00 AM »
You can get knockoff fuel pumps from China for very cheap these days.

Here's one with a screen for a little over $20:
https://www.aliexpress.us/item/2255800514789859.html

I've used these on my bike and they work fine.

A new fuel pump from BMW now runs about $450.

EME sells fuel pumps for about $100 but they're just rebranding the Chinese knockoffs and putting them in their Enduralast house brand boxes. (They're making a killer margin!)

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Offline Duckbubbles

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  • Posts: 56
Re: life expectancy for the OEM fuel Pump on a K bike
« Reply #4 on: June 01, 2024, 11:43:28 AM »
The original fuel pump in my '85 K100RS went past 320,000 miles and 35 years before it gave up.  That includes several years late in it's life that the bike was used very sparingly.  Bought a replacement from euromotoelectric and kept going.

Frank
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  • Austin, Texas USA
  • 1985 K100/1100RS
'85 K100/1100RS 40 years, 331,000 mi.
'23 R1250RS
'03 R1100S BCR #6/200
500,000+ BMW miles

Offline Bmwsquirl

  • Motobrick Curious
  • Posts: 39
Re: life expectancy for the OEM fuel Pump on a K bike
« Reply #5 on: June 01, 2024, 04:25:14 PM »
Darn\damn I just bought an eme for that big amount. O well someday you get the bear other days the bear gets you
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  • garage
  • 1995 k75rt,1974 r90/6,2020 mg v85tt
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