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Thread: Alright 250ES/SX motor gurus..... I need help...

  1. #1
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    4,067

    Alright 250ES/SX motor gurus..... I need help...

    Developed a strange shifting issue with my 85 ES after plowing the last big storm... All the gears are there, no strange grinding or anything of the sort, new clutch installed a little while back, good oil, and the shifter pawl is tight on the shaft... There, we will rule out all the common issues. The thing I have developed is difficulty getting into first. From neutral, I have to lift way to the very top of the shift pawl's throw, to get it into gear... Sometimes takes 2-3 attempts. After that, all the gears are totally normal to get into. Just from neutral to first can be a p.i.t.a.... Anyone got any ideas?
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  2. #2
    Join Date
    Feb 2010
    Location
    newfane ny
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    1,277
    i just fixed one for a friend over the summer that ha a simular problem, take off the shifter and remove the side cover it will come off with a little moveing around its a tight fit. there is a stud/pin that screws in to the blck that sometimes brakes off from stress and lets the fork move around making it hard or impossible to shift its actually a easy fix if this is your problem. cattledog

  3. #3
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    4,067
    Awesome... I will check it out... Thanks cattle-dog!
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  4. #4
    Join Date
    Aug 2009
    Location
    Newfoundland, Canada
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    915
    I have a similar problem, but going from 1st to 2nd. It gets to be a PITA when taking off...
    "Beauty is in the eye of the beerholder"

  5. #5
    skidoo99 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
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    nh
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    267
    Quote Originally Posted by cattle-dog View Post
    i just fixed one for a friend over the summer that ha a simular problem, take off the shifter and remove the side cover it will come off with a little moveing around its a tight fit. there is a stud/pin that screws in to the blck that sometimes brakes off from stress and lets the fork move around making it hard or impossible to shift its actually a easy fix if this is your problem. cattledog
    this happended on one of my sx motors. someone had previousally welded the whole corner piece back in yet it wasnt the best weld and it broke again. ended up splitting the cases and using another case half

  6. #6
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    ^^^ Whole corner of what?
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  7. #7
    skidoo99 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2010
    Location
    nh
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    267
    this is what my case looked like. is this what you meant cattledog?
    Attached Thumbnails Attached Thumbnails downsized_0103012146a.jpg  

  8. #8
    Join Date
    Mar 2010
    Location
    New Brunswick, Canada
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    60
    I fixed an SX with the problem, the mentioned stud backed out, locking the bike in reverse

  9. #9
    Join Date
    Feb 2010
    Location
    newfane ny
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    yikes !!!!!!!! thats the pin wow man what a mess if you need a good case i know someone who has one cattledog

  10. #10
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    Wow... whoever did that repair, PUT THE WELDER DOWN!!!!

    That pin, just replace, and back in business? Whats the function of that pin? Is that pin part #21 in this link?

    http://www.bikebandit.com/houseofmot.../m1902#sch9401
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  11. #11
    Join Date
    Dec 2007
    Location
    Quebec,Canada
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    1,013
    Same probleme solved with the same solution on my SX last year

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  12. #12
    bcredneck is offline I can fit a square peg in a round hole. Just give me a hammer and duct tape! Arm chair racerJust too addicted
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    osoyoos bc canada
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    this exact probem is why i got my big red so cheap it will slowly get worse untill it starts goin between gears and then stops shifting compleatly all it was was the little bolt that holds the star shaped gear to the shift drum it took me days to figer that one out i damb near gave up

  13. #13
    Join Date
    Feb 2010
    Location
    newfane ny
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    1,277
    the shift fork rides on it , its a common problem with a easy fix

  14. #14
    Join Date
    Feb 2010
    Location
    newfane ny
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    yes part 21
    Quote Originally Posted by Thorpe View Post
    Wow... whoever did that repair, PUT THE WELDER DOWN!!!!

    That pin, just replace, and back in business? Whats the function of that pin? Is that pin part #21 in this link?

    http://www.bikebandit.com/houseofmot.../m1902#sch9401

  15. #15
    Join Date
    Oct 2007
    Location
    Minneapolis mn
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    4,067
    Awesome... Thankyou again cattle-dog! Less than $10 from my local Honda dealer... Cant beat that with a stick!
    Last edited by Thorpe; 01-04-2011 at 03:09 PM.
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

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