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2013 honda crf450r gas in oil

Discussion in 'Fuel' started by 272easy, Aug 20, 2013.

  1. 272easy

    272easy Noob

    Racing Number:
    272
    10.2 hrs on bike. Crankcase filled with gas. Any fixes to the cause of this problem? First payment was not even due yet.
     
  2. Bill480

    Bill480 PR Addict

    Location:
    Cleveland
    Racing Number:
    480
    Tons of threads on this on thumper talk and other forums. My 2010 doesn't fill the crank case but some gas definitely makes it's way down there. I'd call Honda Powersports directly and express your concerns and see if they have any solution.
     
  3. day181

    day181 PR Elite Staff Member

    Location:
    Columbus, OH
    Racing Number:
    181
    Are you draining the gas runoff plug?

    My '11 did this too. My workaround was to just change the oil more often than I wanted to. I did a lot of research and Honda basically said it was normal for "some" gas to end up there but it never felt right to me.
     
  4. Bill480

    Bill480 PR Addict

    Location:
    Cleveland
    Racing Number:
    480
    Yeah the ~3 hour oil changes I do are lame but I'm sure as hell not waiting 10 hours or whatever the manual states. My oil feels very thinned out even after 3 hours. Transmission side comes out looking just like it did when I put it in (lol). Engine side looks diluted.
     
  5. JMOORE330

    JMOORE330 PR Addict

    Location:
    Wooster, OHIO
    Racing Number:
    330
    Is this gas runoff plug a serious thing or r u busting our chops? I got an 09 never noticed it doing that tho???
     
  6. TwentyThreeMX

    TwentyThreeMX PR Founding Father

    Location:
    chesterland, oh
    huh? great guess i didnt do my research before i got my honda lol
     
  7. day181

    day181 PR Elite Staff Member

    Location:
    Columbus, OH
    Racing Number:
    181
    It's officially called the Crankcase Breather I guess. After 2 motos this thing would fill up with all kinds of nasty fluids.


    Capture.jpg
     
  8. C Hudak

    C Hudak PR Addict

    Location:
    Lordstown, OH
    Racing Number:
    2
    I've had it happen twice on my 2012, and once on my 2013. I have read everything I can find on it including Honda's official statement which said up to 15% oil capacity could be made up of gas. ha, no thanks. Basically the fuel injector nozzle does not seat all the way closed when you shut off the bike sometimes and the gas bleeds off the pressure thru the nozzle into the intake valves and down the cylinder into the crank. It can only happen when the bike is off other wise the gas would be burnt. I don't think it is happening just on the Hondas, but it is more noticeable because the Hondas low oil volume and separate engine oil from the transmission. Anyways, I don't know what causes it just that it can happen. I don't start my bike without checking the oil for the first ride of the day.
     
  9. hershey

    hershey PR Elite

    Location:
    Ozone Layer
    Racing Number:
    01
    Haha.....of course not!
     
  10. C Hudak

    C Hudak PR Addict

    Location:
    Lordstown, OH
    Racing Number:
    2
    When I read that back I figured I would get some smart ass comment, and what do you know. Haha thanks Hershey.
     
  11. MX955

    MX955 PitRacer Pro

    Location:
    Waterford,Pa.
    Racing Number:
    955
    So...if you alway put your bike at TDC after riding and the bike was going to sit you really should have this problem then right?
     
  12. JMOORE330

    JMOORE330 PR Addict

    Location:
    Wooster, OHIO
    Racing Number:
    330
    Leave it to Hershey to stir up a brand battle!
     
  13. hershey

    hershey PR Elite

    Location:
    Ozone Layer
    Racing Number:
    01
    HEY!!!! I didnt do that Chris did!
     
  14. JMOORE330

    JMOORE330 PR Addict

    Location:
    Wooster, OHIO
    Racing Number:
    330
    Feel like im on a diesel truck forum hahahah just kiddin man
     
  15. GeorgiePorgie

    GeorgiePorgie PR Founding Father

    Location:
    Ohio the 440
    Racing Number:
    740
    Isn't there an aftermarket 2 way breather cap to allow it drain itself ? 2 smoke carbs dump gas everywhere.
     
  16. hershey

    hershey PR Elite

    Location:
    Ozone Layer
    Racing Number:
    01
    Shut up dumbass. A 2 way breather would be an open hose......

    Im sure you meant a one way valve that would let the oil/fuel crap out and not let dirt and water in. Geez stay out of this section unless your asking the questions. And while your at it stay away from tools also!
     
  17. TwentyThreeMX

    TwentyThreeMX PR Founding Father

    Location:
    chesterland, oh

    bahahahahahahahahahah
     
  18. Hause#0

    Hause#0 PR Addict

    Location:
    massillon
    Racing Number:
    0
    I wouldnt worry too much about it. I bought my 09 crf 450 off Brian Gonser. He warned me of the issue. Motor was completely rebuilt and still does it. I would just check it regularly and change the oil often. I rode and raced it all year and had no problems. Best of luck.
     
  19. MXracn746

    MXracn746 PR Addict

    Location:
    Obetz, Ohio
    Racing Number:
    746
    So this is kinda like having to drain the EPA can on a PT-6?
     

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