CRF100F Running Strangely?
  • Illinoisfan
    Posts: 1
    Joined: Fri Mar 30, 2012 7:20 pm

    CRF100F Running Strangely?

    by Illinoisfan » Fri Mar 30, 2012 7:25 pm

    I just bought this bike. It idles perfectly and runs great at higher RPM's. It runs very rough just off idle to about mid throttle. Took the carb off and cleaned the pilot (ran a small wire through it). Everything looks pretty clean. The plug looks a little black, but swapped it with the plug in our CRF80 and nothing changes. I've had the carb off twice, for it surely seems like a fuel issue. Anyone have any other ideas? I thought I understood these bikes!
  • dsrpilot
    Posts: 251
    Joined: Wed Sep 30, 2009 10:12 am

    by dsrpilot » Sat Mar 31, 2012 9:16 pm

    Go get new jets. The smallest of the passages can be hard to clean adequately.

    Should cost you only a few $...
    '12 CRF450X - son
    '09 CRF250X and 2010 F800GS lowered - Wife
    '12 CRF250X and 2012 F800GS - me
  • staticbags
    Posts: 22
    Joined: Thu Feb 28, 2008 8:35 am

    xr100 carb problems

    by staticbags » Wed Nov 11, 2015 9:58 pm

    02 xr100r had carb off cleaned everthing.
    purchased new slow jet today. still same problem

    bike idles great and will run at high RPM fine. but at just above idle to mid throttle, it misses badly.

    I bought a new 35 slow jet and installed. same problem. I am lost at what to do next.

    can anyone help
    jeff H
    austin tx

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