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Thread: Oil cooler 250x/350x

  1. #1
    Join Date
    Apr 2006
    Location
    LA
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    Question Oil cooler 250x/350x

    Any ideas on mounting the 350x oil cooler on a 250x frame? any pics would be great.

  2. #2
    Join Date
    Sep 2005
    Location
    Lipetsk, Russia
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    Maybe mount it like where you'd mount a radiator on a Blaster/YZ250 conversion, right in front of the header pipe. And maybe a heat shield between the two. Basically mount it right on the front supports, behind the a-arms.
    I'm back in the USSR...

  3. #3
    Join Date
    Jan 2004
    Location
    Strongstown, Pa
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    548
    I did mine about a year ago. Its no longer mine but my cousin has it now. took a pic of it today here is were i mounted mine used the stock oil cooler lines from 350x.
    Attached Images Attached Images

    Can't or Won't?

  4. #4
    Join Date
    Mar 2005
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    ma
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    how did you mount it to the engine? does the 350x oil filter cover fit right on?

    been wanting to add one to my 250x for a long time!
    Billet Triz 250 parts, Case Savers, Engine Mounts, Boost Bottles, Oil Caps, and Shifters, pm me for info

    Shock Rebuilding, PM me for details TRI-Z Shocks rebuilt too



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  5. #5
    Join Date
    Jan 2004
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    Strongstown, Pa
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    That 250x has a 350x motor in it so tryin to mount it on the 250x motor your on your own. topend my the 250x engine i have here is trashed so put the 350 in it.

    Can't or Won't?

  6. #6
    Mosh is offline I'm the one with all the 2 stroke around here! The day begins with 3WW
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    Quote Originally Posted by sblt500r View Post
    how did you mount it to the engine? does the 350x oil filter cover fit right on?

    been wanting to add one to my 250x for a long time!
    someone, I think dennis kirk,or powroll makes a cooler kit for the 300ex,250x.There are boss mounts on the clucth covers on the 250 and 300ex to drill and add fittings to run a external cooler.I just cant remember who stocks the kits.
    Here is where my long useless list of stuff nobody cares about should go...


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  7. #7
    Join Date
    Mar 2006
    Location
    PA
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    3,515
    this is my 350rx but i use this style of cooler on the 250x frames when i use 350 motors.

    these coolers cool better and mount easy.

    this is off a street bike but its about the same as a 400ex or 450r cooler.

    i just bend 3/8 steel line and weld on the right ends for the motor and the cooler ( you must be good with a mig to do this), but you could use rubber line.
    Attached Images Attached Images
    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
    WWW.HREATV.COM

  8. #8
    Join Date
    Mar 2005
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    Quote Originally Posted by moshman355 View Post
    someone, I think dennis kirk,or powroll makes a cooler kit for the 300ex,250x.There are boss mounts on the clucth covers on the 250 and 300ex to drill and add fittings to run a external cooler.I just cant remember who stocks the kits.
    yes i remeber seeing those in old dennis kirk. don't remeber seeing them in the new cataloges, but i wasn't looking for it either!

    i didn't know he had a 350x engine in that frame. i thought 350x parts would fit on, so was gonna look for a used oil cooler from one. thought i could save a few bucks!
    Billet Triz 250 parts, Case Savers, Engine Mounts, Boost Bottles, Oil Caps, and Shifters, pm me for info

    Shock Rebuilding, PM me for details TRI-Z Shocks rebuilt too



    My Feedback
    http://www.3wheelerworld.com/showthr...k-for-sblt500r

  9. #9
    Join Date
    Mar 2006
    Location
    PA
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    3,515
    350x parts wont fit on a 250x...i was just showing him another kind of cooler to use
    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
    WWW.HREATV.COM

  10. #10
    Join Date
    Apr 2006
    Location
    LA
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    35
    SWIGIN where did you get that header? And do you know if it will clear the 250x frame?

  11. #11
    Join Date
    Mar 2006
    Location
    PA
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    3,515
    i made it....and yes it will with my 250x frame mod (check my post)
    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
    WWW.HREATV.COM

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