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Thread: 86 250R ATC Engine noise/rattle

  1. #1
    Join Date
    Jul 2006
    Location
    Portland, OR
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    1

    86 250R ATC Engine noise/rattle

    I just put a new crank bearing, rod, piston and rings in my 86 R. It has sat since blowing it up 10 mos. ago. When I fire it up, I hear a nasty rattle or grinding, almost like when you push on the kick starter when it is running. I have had this bike for a LONG time and I don't EVER remember hearing a sound like this. Any ideas???? Thanks in advance.

  2. #2
    Join Date
    Jul 2005
    Location
    Antioch,California
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    149
    My 85 has a knock sound at Idle/off idle. Still on original bore.

  3. #3
    traxxasx's Avatar
    traxxasx is offline Alligator sized brain can't spell you correctly. Arm chair racerRoostin Away
    Join Date
    Sep 2005
    Location
    las vegas
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    1,184
    You probably missed a peice inside the case and is floating around messing with gears.
    MY FEEDBACK---
    http://www.pbnation.com/showthread.p...2#post20992142
    +6 positive feedback.
    WaLLa BinG WaLLa BoOm ShE's DoNe!!!

    MY 225 Dx
    Piped, jetted, 2 stage uni, wheel spacers.
    __________________________________
    My 82 250R
    All original even with tool kit.
    Stage 2 uni, no air box jetted.

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