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Thread: 85 250r fuel mixture

  1. #1
    Join Date
    May 2020
    Location
    maple ridge B.C. canada
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    2

    85 250r fuel mixture

    hey just wondering what guys are mixing their fuel at. I just picked up a 85 250r all stock and Honda says 20 to 1 seems rich I used to run 32to1 on my 84 250r.Any help would be much appreciated

  2. #2
    TexFest's Avatar
    TexFest is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Aug 2002
    Location
    U.S.
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    339
    32:1


    Sent from my iPhone using Tapatalk
    TPC 450R

  3. #3
    Join Date
    Jun 2005
    Location
    Soutwestern PA
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    2,040
    I've found 32:1 a bit smoky. I mix at 36:1 or 40:1. You can safely go even higher.

    Today's oils are much better than in 1985 when that ratio was recommended.

  4. #4
    Join Date
    Jan 2018
    Location
    California
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    105
    Quote Originally Posted by Greaseburner View Post
    hey just wondering what guys are mixing their fuel at. I just picked up a 85 250r all stock and Honda says 20 to 1 seems rich I used to run 32to1 on my 84 250r.Any help would be much appreciated
    If you are not running high revs for long periods.like sand hill climbing you can safely run maxima k2 at 40 to 1.

  5. #5
    jasong_10's Avatar
    jasong_10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Apr 2020
    Location
    Croghan, New York
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    420
    32:1 works well for me, not a ton of smoke and safe at high rpms
    Jason

    85 ATC 250R - restored stock other than 18" rears, nerf bars, Honda key switch, 14T front sprocket, and white tank and plastics (except rad shrouds)

    87 ATC 200X - restored stock other than 18" rears and nerf bars

    84 TRX 200 - rough but complete budget restore for wife and eventually daughters to bum around on

    Eton Viper 50cc - oldest daughter's current ride

  6. #6
    Join Date
    May 2020
    Location
    maple ridge B.C. canada
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    2
    Thanks for the info guys I will start 32:1 and go from there cheers

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