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Thread: 250R stripped Trans Oil bolt! :(

  1. #1
    Join Date
    Jul 2009
    Location
    Winnipeg
    --
    211

    250R stripped Trans Oil bolt! :(

    .. this 250R I recently purchased has a stripped trans oil bolt.. Any tricks to repair this before I decide to weld a nut on there LOL

    goes on basically finger tight and if I turn it hard enough with fingers.. she will spin

    ruined my day...

    but does hold oil..

  2. #2
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,018
    Take it to someone who knows how tap & dies work.
    It sucks to get old

  3. #3
    Join Date
    Oct 2012
    Location
    WI
    --
    499
    Very common issue. Google it and you will find a lot of info about it. TRX250R.net will be able to get you all fixed up.
    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

  4. #4
    Join Date
    Sep 2013
    Location
    Saskatchewan, Canada
    --
    661
    I feel your pain - for me it was when changing jets on my '85 R - lower carb bowl plug was stripped - explains the slight fuel leak. Part no longer available at dealer but I did find a complete NOS Honda lower bowl assembly.

  5. #5
    Join Date
    Aug 2008
    Location
    devore,ca
    --
    1,042
    Threadsert.
    YAMAHA 450 HYBRID
    85 350X- RED
    85 350x -BLACK
    86 350x-WHITE (with Goki)
    85 250r
    83 atc 70
    84 atc 70
    84 atc 110
    09 yfz 450
    2006 Arctic Cat Prowler
    RZR XP 900

  6. #6
    Join Date
    Jun 2014
    Location
    Pittsburgh
    --
    107
    Go to autozone or something and get a repair plug. It's rubber and when it's placed into the hole and you turn it, it gets fatter and I have used them on 2 vehicles and my 250r too with no problems . They're only a couple bucks and will do the trick.
    '' Mixin gas N haulin _ss''

    1985 250R-310
    1985 Tri-Z
    1985 Tri Zinger-X's 4
    1973 atc70

  7. #7
    Mosh is offline I'm the one with all the 2 stroke around here! The day begins with 3WW
    Join Date
    Jun 2005
    Location
    na
    --
    5,702
    Clean the area real good with the bike on its side or stood on the grab bar with it drained.
    Carefully look at the case. Many times a guy tried to put a self tapping oversized plug in as this was a common problem on the 250R. The problem with over sized temporary plugs is the case boss was very thin at the drain plug area and the oversize plugs would crack the case. You will see a crack up into the case if this has happened to your engine in the past. If you inpsect the area and see no crack up into the hole, then follow this link below on how to install a helicoil.
    I forget the exact size needed for the 250R but do a search and it will pop up.
    The most important thing is to keep the installation straight and you will have to trim coils off tye heli coil threads as they are too long and will protrude up into the case and hit the transmission gears. Trimming coils is easily done one coil at a time with a sharp pair of side cuts on the end opposite of the driving tang for the insert tool.

    Or you can look into the time sert option which you will find info and vids on the net as well, but usually are special order and a little more costly.
    If you jam over size self tapping plugs in there, they will strip again sooner than later and they will crack the case which will always leak no matter what unless you have it welded then repaired correctly. Sorry for the book, but I am tired of having cases welded from improper quick fixes.

    http://www.3wheelerworld.com/showthr...ripped+threads
    Here is where my long useless list of stuff nobody cares about should go...


    Proudly NOT a member of

    "Team on the Teat"

  8. #8
    Join Date
    Jul 2010
    Location
    O.C., Oregon
    --
    921
    Good advice Mosh!

    Tip - When using a tap, put grease on it to keep all the shavings together on the tap. Keeps them from making their way into the cases

    Pretty easy fix, I would suggest a timesert (12mmx1.5, don't go bigger!) before a helicoil personally but both will work well. Take your time.
    1985 250r-LED Performance 4mm Stroker motor
    1978 ATC70 w/ Piranha 140cc
    1972 - K1 - CT70 w/lifan 125cc
    2017 YZ 250x- Braap

    Youtube channel = http://www.youtube.com/user/ter5678/videos

  9. #9
    Join Date
    Jul 2009
    Location
    Winnipeg
    --
    211
    thanx guys, ill look into em all

  10. #10
    Join Date
    Jul 2009
    Location
    Winnipeg
    --
    211
    Should there not be a gasket/washer on this bolt? like a car there is a gasket on a drain bolt.. none on this thing?? should there be

  11. #11
    Join Date
    Jul 2009
    Location
    Winnipeg
    --
    211
    forget it.. manual says there should be a washer and there isnt

  12. #12
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,018
    Quote Originally Posted by wpginterceptor View Post
    forget it.. manual says there should be a washer and there isn't
    Make sure you get either a copper or aluminum washer, not steel.
    It sucks to get old

  13. #13
    Join Date
    Sep 2005
    Location
    MICHIGAN
    --
    2,027
    I read that some people use a tap for the size of the Suzuki LT250R plug because it is larger than the atc/trx drain plug.
    86 T3
    84 T3
    86 KX250

  14. #14
    Join Date
    Jan 2012
    Location
    Carthage NY 250r rules
    --
    2,355
    When I sent my cases to BDT to get fixed they put a timecert in mine looks great.Click image for larger version. 

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    250r rules

  15. #15
    Join Date
    Mar 2011
    Location
    Louisiana
    --
    208
    When you make fun of the weld a nut on there trick, the trike gods seek revenge.

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