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Thread: 85/85 lt250r swingarm fix

  1. #1
    Join Date
    Aug 2006
    Location
    huntington, ny
    --
    192

    85/85 lt250r swingarm fix

    anyone got any tips on fixing the cracking swingarm problem on the 85/86 lt250r.
    this will be the 2nd cracked one i have. i've never had a skid plate on it. i just bought a new one i was thinking have it welded then put on the skid plate it should be fine. the skid plate mounts before and after where they always crack.

    trikes: one 1985 250r

  2. #2
    Join Date
    Sep 2002
    Location
    Clarks Summit PA
    --
    1,236
    ive seen people add a support, to the carrier. by bolting it to the bottom the swingarm and then welding it two where the carrier adjusts..

    a bent piece of metal.
    Ride it like you stole it! And never look back! They are too far behind to see!

  3. #3
    Join Date
    Mar 2005
    Location
    overton, PA
    --
    5,257
    weld it and then make an band to go around it to reinforce it then put yur skid son shoudl be fine.
    ok here goes, 85 atc70,2 84 atc70's 83 alt50,83 atc110 , 70 us 90 parot green, 85/86 350x garage queen, stock rider 85 350x, project 85 350x 85 250r drag bike, 2 85 250sx's, alt185, , scat tracker?99blaster,85 250r rider,85 250r ice racer project ,93 kx500,99 xr200r, 91 dr250s ,89 lt500 quadzilla,88 lt250quadracer, 88 trx250r race full on race quad,, 01 yamahakodiak400, kawaki kd100,lt50 for my doughters,93 300ex, 230 quadsport, lt185, lt250 quadrunner,84200s, is that enough?

  4. #4
    Join Date
    Sep 2005
    Location
    MICHIGAN
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    2,026
    Buy a 1987-90 LT250R swingarm and carrier and bolt that on. You might need the shock linkage too but I am not sure. Other than that everything else you have will work on the new swingarm.

    Here's a good LT thread to read:
    http://forums.everything2stroke.com/...swaps-out.html
    86 T3
    84 T3
    86 KX250

  5. #5
    Join Date
    Mar 2005
    Location
    ma
    --
    988
    that cracked one is a 85. 86's have a reinforcment in that area. i have an 86 lt250r, and it hasn't cracked there, but it seems to crack everywhere else!

    heres a 85 swinger i fixed awhile ago. 1/4 inch plate welded and bent up and over the carrier mounts.





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  6. #6
    Join Date
    Mar 2006
    Location
    PA
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    3,515
    Quote Originally Posted by sblt500r View Post
    that cracked one is a 85. 86's have a reinforcment in that area. i have an 86 lt250r, and it hasn't cracked there, but it seems to crack everywhere else!

    heres a 85 swinger i fixed awhile ago. 1/4 inch plate welded and bent up and over the carrier mounts.







    thats a nice patch job.

    i always added a long plate to each side as well...maybe a foot long and wide enough to fit the sides
    80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
    90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
    00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
    2012.....Replaced the 350x motor for a 444cc YZ426
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