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Thread: 85 250r fresh lower and upper rebuild ..

  1. #1
    Join Date
    Jan 2019
    Location
    US
    --
    12

    85 250r fresh lower and upper rebuild ..

    Just rebuilt motor it had been setting 10years ,cleaned carb put rebuild kit in it starts and idles fine [pilot jet 52]main 142...When u hit the gas tho it bogs like it's running out of gas .tried different main jet still same,can adjust air screw and it has no effect either way you turn it .anybody have any wisdom of wut to do ?

    Sent from my SAMSUNG-SM-J320A using Tapatalk

  2. #2
    Join Date
    Mar 2006
    Location
    London, Ontario, Canada
    --
    1,059
    I've seen this happen twice believe it or not. a rag was put in an airbox and missed during assembly. enough air to idle but dies above that. thats my only experience with your symptoms.hope someone has a better answer.

    Ross..
    My Rides
    1985 250R original (Garage Queen)
    -under restoration

    1985 250R black and blue full rebuild ( Daily Rider)
    -Paul Turner pipe
    -+2" Westcoast

    1985 Red and White Tecat-EH Sold

    1985 Green Tecate Sold

    My Wife's Ride
    -2003 Suzuki LTZ 400 Showroom fresh and completely stock

    My Kids Ride
    -2004 Yamaha Blaster, Completely Stock
    -2006 Yamaha Blaster, Completely Stock

  3. #3
    Join Date
    Jan 2019
    Location
    US
    --
    12
    No rag in it .does the same with breather off too

    Sent from my SAMSUNG-SM-J320A using Tapatalk

  4. #4
    Join Date
    Oct 2010
    Location
    ky
    --
    88
    Check the reeds sounds like your issue. Could be an air leak, but it would probably be idling high if it was.

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