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Thread: 250ES big red Issues.

  1. #1
    Join Date
    Oct 2012
    Location
    WI
    --
    499

    250ES big red Issues.

    I'm putting my 1986 ATC 250ES Big Red back together, I have two issues. When I put the engine in and started bolting it in, the top Head mount was not lining up, all of the others lined up PERFECTLY. But not the top one, I ended up tightening it down and it bent the engine mount brackets. Also, when I put the swing-arm and drive shaft on, I started turning the hubs to see if I could hear any clunking, sure enough, these is a lot of clunking, either coming from the engine or the drive shaft u-joint. But when I put it in first gear and kick it over, it does not do any clunking at all.

    Can someone please shed some light on these issues?

    Thanks!!
    1983 ATC 200x
    1982 ATC 250R X2
    1983 ATC 250R : Future build
    1985 ATC 250R : Main rider
    1985 ATC 363R Duner
    1985 ATC 250R X2 : Future build
    1986 ATC 250ES

  2. #2
    Join Date
    Feb 2011
    Location
    Sarnia, Ontario, Canada
    --
    3,415
    Noise is likely nothing..mine make a slight clunk noise from the u-joint if the wheels are lifted off the ground as I spin them.

    The engine mount thing I've never seen before..suggest you loosen off all the bolts and shake the engine to be sure it's settled into place. The top mount only goes in one way because of it's shape..

    Post up some pics..maybe a video of the noise.

    Lets have a look..
    Current toys..
    1986 Honda 350X..trail bomb!
    1985 Honda 250SX..my main mudder
    1985 Honda 250ES..Back in Black Trike
    Current non-trike toys:
    1990 Honda TRX300FW
    1995 Seadoo GTX
    1998 Polaris Indy Lite 340(Nearly new looking)
    1998 Polaris Touring 500
    1998 Club Car (electric)

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