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Thread: 85 250R Air Inlet

  1. #1
    Join Date
    Jul 2019
    Location
    VA Beach
    --
    63

    85 250R Air Inlet

    How much are these really needed for the 85 & 86? They supposedly direct air to the head, correct?
    Click image for larger version. 

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    - 85 ATC250R
    - 85 ATC350X
    - 87 XR200R
    - 00 XR200R (outfitted with long travel suspension)
    - 05 CRF80F
    - 08 DS250

  2. #2
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    Quote Originally Posted by Insanity Plea View Post
    How much are these really needed for the 85 & 86? They supposedly direct air to the head, correct?
    No, they direct air into the frame’s backbone for the airbox. As far as how much they’re needed, unknown by me.
    Red Rider's Sand Machine Updated 07/23/14

  3. #3
    Join Date
    Jul 2019
    Location
    VA Beach
    --
    63
    Quote Originally Posted by Red Rider View Post
    No, they direct air into the frame’s backbone for the airbox. As far as how much they’re needed, unknown by me.
    Ah hah, thanks for clarifying the function. I’m not sure where I read about it being for the head, but directing down the frame tube seems more likely. I’m assuming with the lid being drilled, it would pretty much eliminate the functional need for the inlets.

    Merry Christmas!!!
    - 85 ATC250R
    - 85 ATC350X
    - 87 XR200R
    - 00 XR200R (outfitted with long travel suspension)
    - 05 CRF80F
    - 08 DS250

  4. #4
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    Quote Originally Posted by Insanity Plea View Post
    Ah hah, thanks for clarifying the function. I’m not sure where I read about it being for the head, but directing down the frame tube seems more likely. I’m assuming with the lid being drilled, it would pretty much eliminate the functional need for the inlets.

    Merry Christmas!!!
    The purpose of the tank deflectors on the air-cooled bikes (200X, 250R, & 350X) was to guide air over the head/cylinder. Maybe that’s what you’re remembering. Merry Christmas!
    Red Rider's Sand Machine Updated 07/23/14

  5. #5
    Join Date
    Jul 2019
    Location
    VA Beach
    --
    63
    Click image for larger version. 

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ID:	261097
    Thanks Rider, I put an ISO on the classifieds board. Unfortunately I had to rip mine off with vice grips because the screws were not being compliant, and I was in a time crunch to get the frame dropped off for powder coat before they shut down until the new year. Im actually on my way there now to pick it up.
    - 85 ATC250R
    - 85 ATC350X
    - 87 XR200R
    - 00 XR200R (outfitted with long travel suspension)
    - 05 CRF80F
    - 08 DS250

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