Results 1 to 11 of 11

Thread: 350x Motor Into a 300ex Frame

  1. #1
    Join Date
    Apr 2008
    Location
    Kalamazoo, Michigan
    --
    814

    350x Motor Into a 300ex Frame

    I'm looking for some tips or Ideas to help me get started. I took everything that was electronically related to the 300ex off as well as the motor. I Don't want to spend $700 on the kit that Powroll sells. So I'm thinking i can modify existing parts to make it work.

    Thanks ahead of time guys
    Leave feedback for me here : [Please Don't start another thread again!]
    http://www.3wheelerworld.com/showthr...for-MagicJames

    Current :
    86 250SX
    86 350X
    86 250R Project

    Owned and Sold

    85 250R
    2 ATC70's 84 and 79

  2. #2
    fabiodriven's Avatar
    fabiodriven is offline Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers. Catch me if you can
    Join Date
    Jun 2008
    Location
    The woods
    --
    10,516
    If I'm not mistaken, Swigin would be the man to talk to.
    85 Tri-Zinger 60
    85 ATC250SX
    86 ATC250SX
    87 ATC250SX
    02 XR650L conversion
    84 ATC 480R

  3. #3
    Join Date
    Apr 2008
    Location
    Kalamazoo, Michigan
    --
    814
    So now that this project is underway, I've realized that these motors weren't designed to fit in there without finessing the motor into it, and speaking nicely towards it. The motor is a TIGHT fit but does fit. Needs a 2 or 3 spacers to get it rolling. I'm gonna take pics and show you guys what to expect if you do this swap yourself.

    But for anyone that has done it.... how did you route your decomp cable?
    Leave feedback for me here : [Please Don't start another thread again!]
    http://www.3wheelerworld.com/showthr...for-MagicJames

    Current :
    86 250SX
    86 350X
    86 250R Project

    Owned and Sold

    85 250R
    2 ATC70's 84 and 79

  4. #4
    Join Date
    Mar 2006
    Location
    PA
    --
    3,515
    I've never seen a decomp on a 250x 350x hybrid but I bet it can be done using 250x decomp parts.

    edit.....Makeing the rear upper motor mount removable like in my thread helps as far as installing/removeing the motor.
    Last edited by SWIGIN; 06-08-2011 at 12:15 AM.
    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

  5. #5
    250r_doverdemon is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Mar 2011
    Location
    Chatham-kent, Ontario, Canada
    --
    203
    can i ask why your doing this? not trying to be a dick im just curious..
    85 350x .. that is all

    "A quad is for someone who rides in the seat, a trike is for someone who rides on the footpegs"

    "Duct tape is like the force. It has a light side, a dark side, and it holds the world together."

    I got a shotgun, and rifle and my honda trike and a country boy can survive

  6. #6
    Join Date
    Dec 2010
    Location
    washington state
    --
    681
    why is a good ? three wheels are better than four !!
    GOT MUD?:

  7. #7
    Join Date
    Apr 2008
    Location
    Kalamazoo, Michigan
    --
    814
    I have 3 spare 350x motors and Only 1 1/2 350x frames ... I picked up a 300ex for $400 (with a blown motor) so i figured i could mount one up for my wife to ride, since she's not the biggest fan of 3 wheels.
    Leave feedback for me here : [Please Don't start another thread again!]
    http://www.3wheelerworld.com/showthr...for-MagicJames

    Current :
    86 250SX
    86 350X
    86 250R Project

    Owned and Sold

    85 250R
    2 ATC70's 84 and 79

  8. #8
    atcrider1's Avatar
    atcrider1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Mar 2009
    Location
    Montrose MI
    --
    400
    we had a x with a 350 in it, it was pretty fun to ride, but a to start without the decomp cable



    " I gotz the 8-track player mounted to my Oly, it's pretty sweet for trail side dance parties....."
    -Uller God

  9. #9
    Join Date
    Sep 2007
    Location
    100mi west of Chicago
    --
    3,582
    The 350x motor is a decent increase in power over the 300ex correct? The downside is you lose reverse and electric start creature comforts

    Rob

  10. #10
    250r_doverdemon is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Mar 2011
    Location
    Chatham-kent, Ontario, Canada
    --
    203
    oh i see..
    85 350x .. that is all

    "A quad is for someone who rides in the seat, a trike is for someone who rides on the footpegs"

    "Duct tape is like the force. It has a light side, a dark side, and it holds the world together."

    I got a shotgun, and rifle and my honda trike and a country boy can survive

  11. #11
    Join Date
    Dec 2010
    Location
    washington state
    --
    681
    you can put electric start on a 350 moter ,the it will be easy for the wife to start it .
    GOT MUD?:

//ArrowChat Integreation Code //