Author Topic: Just wanted to point out something about everyone's crankcase breather hose.  (Read 6933 times)

Oliver

  • Guest
THe crankcase breather hose on k bikes cracks easy. I noticed a small crack about a month ago threw some tape on it and ordered a new one from beemerboneyard. The bike ran like it always had (low gas mileage at high revs, slow pick up, bad idle) up until I received the package, I replaced it and it only took me 5 minutes and now my bike is like new. Its hard to describe how smooth everything feels now, I don't have to keep the idle enricher on for two miles, Ive been on the same tank of gas for more than a week now and the red light still hasn't come on, and driving at high speeds and shifting up feels solid and quick.

Everyone should check this hose and make sure there are no cracks anywhere, if you see a bit of grime around it, odds are its cracked. However lucky for you that means when you replace the 15 dollar item you're bike will drive better than it ever has.

Just some info,
cheers

Offline Grim

  • ^ Proficient Motobricker
  • Posts: 494
The K75 and K100 pre 90 list BMW Part number 11 15 1 460 480 (on sale for 9.95 at beemer boneyard)

The K1100 breather hose is 11 15 1 461 835 and lists K1, 91-91 K100RS and the K1100.


Anybody know whats different? The price is $25 verses the special at Beemerboneyard of $9.95 for the older
1995 Morea Green K1100LT

Offline Inge K.

  • ^ Quintessential Motobricker
  • Posts: 1451
The two hoses is quite different, the one for the 4V models is a lot longer.
On the 2V's it's just a short stub that connects to the plenum chamber.
On the 4V's it connects to a cyclonic oil separator inside the upper half of the airfilter housing.
  • Norway

Oliver

  • Guest
Inge knows his stuff.

Offline frodef

  • ^ Proficient Motobricker
  • Posts: 184
  • 1986 K75C
I changed mine one or maybe two years ago (maintenance kit from the boneyard), and just noticed it's already starting to crack again..  :dunno2:

Offline johnny

  • TrailBrakingThrottleWhacker
  • ^ Quintessential Motobricker
  • Posts: 7653
  • Whacking...n...Chopping Sliding...n...High Siding
im gonna spray my hoses with flexseal as seen on tv...

j o
  • :johnny i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin  :johnny

zonenfeile

  • Guest
2V and 4V are totaly different

if you ve got the prob: do it once - but complete - mostly not only the one hose

13 fuel sytem

partlist all K´s

Offline Chaos

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 3159
  • Mars needs women!
The beemerboneyard hose for early K's is thinner and some have had early failures.  I got one about 3 years ago and it is still fine.  Just a heads up.
  • 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)

Oliver

  • Guest
Atleast its cheap. Just keep it in check ya'll

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