2005 450X inconsistent idle
  • gbuteyn
    Posts:2
    Joined:Tue Nov 15, 2005 12:09 pm
    2005 450X inconsistent idle

    by gbuteyn » Mon Sep 18, 2006 3:48 pm

    bike ran perfectly last winter, went riding this past weekend and everytime I stopped the idle was high. At first I thought it was a pinched throttle cable but after confirming the cables were clear I just happened to lean the bike over and the idle came up again. If I waited several seconds the idle returned to normal. I am thinking because the bike sat for 4 months the floats maybe sticking, anyone have an idea.
  • Mr Smith

    by Mr Smith » Mon Sep 18, 2006 4:02 pm

    Any fuel running out the overflow hoses?
  • gbuteyn
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    Joined:Tue Nov 15, 2005 12:09 pm

    by gbuteyn » Mon Sep 18, 2006 4:37 pm

    Yes, but only when you lean it over
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    Kilroy
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    by Kilroy » Thu Nov 09, 2006 9:02 pm

    My '06 is doing the same thing when I ride. I just put the JD Jet kit in, red needle 4th position and 62main jet (because I live/ride at 4500' MSL) air box mods and pink wire complete.

    I can't figure out why it idles high, then settles down after about 20 seconds. I checked the grips and lines, but nothing in the way.

    Heck, this bike is only 2 weeks old and 48 miles are on it.

    Otherwise it runs like a raped ape! Thanks to reading many posts on here!

    Thanks for all the input from experienced CRF guys on here. This is my first thumper.

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    JAWS
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    by JAWS » Thu Nov 09, 2006 9:14 pm

    I had the same issue after putting in the JD kit, etc. I opened the fuel screw more and it helped, but when I put in a richer pilot the issue went completely away. I had the 45 and went to a 48, but I live at 600' .

    Joe
    Last edited by JAWS on Fri Jan 26, 2007 9:22 pm, edited 1 time in total.
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    '05 CRF450X,McClain suspension, Cycra Probends, Pastrana FMX Pro Tapers,BRP Sub mount & Scotts stabilizer.See carb sticky for more
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    crfsonly
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    by crfsonly » Thu Nov 09, 2006 11:33 pm

    irratic or hanging idle is usually a sign of a lean pilot circuit. if you can't adjust it with the pilot screw then go up one on the pilot jet and see if that doesn't help.

    ken
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    XGiant
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    by XGiant » Fri Nov 10, 2006 5:21 am

    Kilroy, welcome to the site! Glad to have another Oregonian, even if you are only on loan!
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    Kilroy
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    by Kilroy » Fri Nov 10, 2006 9:39 pm

    Great idea... I'll do some tinkering with the pilot screw.

    Also, thanks X-giant. Our group is planning a trip sometime soon, or after spring to Huckleberry Flats OHV area near Oakridge. Maybe some of you local boys can show us around the hills there. I understand there is some excellent single track stuff there. If that's your neck of the woods.

    Thanks for the reply's.

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    whoya
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    by whoya » Fri Jan 26, 2007 5:44 pm

    JAWS wrote:I had the same issue after putting in the JD kit, etc. I opened the fuel screw more and it helped, but when I put in a richer pilot the issue went completely away. I had the 65 and went to a 70, but I live at 600' .

    Joe

    #70 pilot jet? Wow! I'am having trouble with hanging idle with the stock pilot (45) I'm thinking about a 48. #70? really?
    01' WR250F mods and dollars added
    06' 450X
  • Asmith
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    by Asmith » Fri Jan 26, 2007 5:49 pm

    whoya wrote:
    JAWS wrote:I had the same issue after putting in the JD kit, etc. I opened the fuel screw more and it helped, but when I put in a richer pilot the issue went completely away. I had the 65 and went to a 70, but I live at 600' .

    Joe

    #70 pilot jet? Wow! I'am having trouble with hanging idle with the stock pilot (45) I'm thinking about a 48. #70? really?


    No. he had a 45 and went to a 48.
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    whoya
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    by whoya » Sat Jan 27, 2007 12:11 am

    Thanks A.S. Wasn't sure what Jaws was Smokin...! I thought somthing wasn't quite right there. Must be a missprint....
    01' WR250F mods and dollars added
    06' 450X
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    JAWS
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    by JAWS » Sat Jan 27, 2007 6:45 am

    whoya wrote:Thanks A.S. Wasn't sure what Jaws was Smokin...! I thought somthing wasn't quite right there. Must be a missprint....

    Brain fart! :)

    Joe
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    '05 CRF450X,McClain suspension, Cycra Probends, Pastrana FMX Pro Tapers,BRP Sub mount & Scotts stabilizer.See carb sticky for more

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