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Thread: 250SX rear suspension question

  1. #1
    Join Date
    Aug 2006
    Location
    Madison, TN
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    46

    250SX rear suspension question

    I just picked up a 1985 Honda 250 SX. It seems to be in pretty good condition, but I am not sure about the rear suspension. I weigh about 240 lbs and it just doesn't seem to have any travel even with my big ass on there. I have watched it when others are riding and it does not seem to move at all! Is this normal? Does this trike just have a really stiff rear spring or what???

  2. #2
    Join Date
    Aug 2006
    Location
    Madison, TN
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    46
    Nobody so far?
    It's not so funny MEOW, is it?

  3. #3
    mad_max is offline Just Too Addicted Arm chair racerJust too addicted
    Join Date
    Nov 2003
    Location
    Kansas
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    462
    Stock 250SX's have a shock with a preload adjuster. if the adjuster is cranked all the way around to firm it will be real stiff. If you have the original tool box (under the rear seat/fender) look for a C shaped tool with a handle.

  4. #4
    Join Date
    Feb 2004
    Location
    Tionesta, PA
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    5,743
    the 250SX does indeed have a very stiff spring. Very much like the Big Red - and I think it is the exact same shock/spring that is on the Big Reds. I weigh 240lbs too, and it is nice to drive over a big log on a trail and not have the suspension bottom out. All sounds normal to me.
    RIP - Yamahondaman!! You will never be forgotten!
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  5. #5
    Join Date
    Aug 2006
    Location
    Madison, TN
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    46
    Thanks for the info! I do have the adjusting 'spanner' for the rear spring/shock in the tool box, I will play with that adjustment later today.
    It's not so funny MEOW, is it?

  6. #6
    Join Date
    Aug 2006
    Location
    Madison, TN
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    46
    I jacked up my 250sx this morning to adjust the monoshock. When I jacked up the bike, the rear suspension did not drop. It only dropped down after I removed the top bolt from the shock. After I adjusted the spring to the softest setting, the shock extended out, like it had been 'stuck'. After I bolted everything back up and took it off the jack, it sat up all the way, like the shock is stuck. When i sat on it, the shock compressed down and stayed down. If you lift the rear end up by the grab bar, the suspension still does not drop AT ALL. The spring is a little easier on the kidneys now, but I still don't seem to have much suspension travel, maybe a half inch. This does not seem normal to me, but I am a newcomer to this hobby. Please help!
    It's not so funny MEOW, is it?

  7. #7
    Join Date
    Feb 2004
    Location
    Tionesta, PA
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    5,743
    Sounds like you have a trashed shock - post up a wanted ad in the classifieds and you'll have one from somebody real soon.

    It sounds not good or normal to me suspension travel should be about 5 or 6 inches I'd say for an SX - probably not worth rebuilding as you can get a good used one cheap.
    RIP - Yamahondaman!! You will never be forgotten!
    RIP - Sam Brehm!! Gone but NEVER forgotten!
    RIP - Sandpuppi101 - You will live on in my mind - I miss you friend!

  8. #8
    Join Date
    Jul 2004
    Location
    Mud hill. close to water !
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    3,658
    It should have some displacement.. my SX will easily bounce up and down when i jump on the foot pegs ( i weigh 175 lbs ! ) .

    remove the chock adn take it apart.. might just be full of mud and grit.. clean the shaft and oil it up and work it ..

    Even if the shock itself was shot.. the spring should have you bopping around like a slinky..
    Currently :

    82 ATC - 200, plain jane, almost mint. ( Sold, 03-17-2005)
    84 ATC - 200 ES, Jimmy-Rigged, don't ask.( Sold, 03-17-2005)
    85 ATC - 250 SX, Pride and Joy, Bottom-Less Money Pit.
    84 125 M - The Mini-SX not running yet. but won't be long.
    --

    The more people i meet.. the more i like my DOG !

  9. #9
    Join Date
    Jul 2005
    Location
    NASHVILLE
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    514
    Will the trx rear shock work on a 250sx. Like the 300 trx and the 200sx???
    Current Rides:

    All Red's!


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