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Thread: Looking at a 250sx for sale 2/26/21

  1. #1
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30

    Looking at a 250sx for sale 2/26/21

    I found our 2nd 3wheeler i think. Its an 85 (i think) 250sx. Its in pretty good shape and its all there... but it does have a blown rear. Im very familiar with honda rear diffs ( i have a fleet of honda 300s and most of my buddies have one too.) I'll take it apart and as long as the pinion gear is good ill rebuild it. I also have one on ebay im going to buy as soon as its on my trailer. Front fender has small cracks near shock, it has plastic tank, (hopefully he has metal one too, I can fix them) rear fender look complete. No rear rack that I seen. He said the pictures make it look better than it does when you're standing next to it but I think it looks great. He's asking $1250... ill let u guys know how it works out.

  2. #2
    Join Date
    Apr 2014
    Location
    Edmond, KS
    --
    2,531
    I'll be waiting.....

  3. #3
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Going today at 3. I dont have enough posts to add attachments yet on this forum yet or o would have posted the ones he texted me already....

  4. #4
    Join Date
    Jun 2010
    Location
    Cold Lake, Alberta, Canada
    --
    3,001
    If it runs and isn't a total turd the price seems OK. Sounds like you have the resources and skills to fix the rest of the issues. Although it doesn't take long to make a 1K machine into a 2.5K machine if expensive parts are needed.
    Trikes
    1970/71 US 90 (Aquarius Blue)
    1970/71 US 90 (Future Project)
    1972/73 US 90 Camo Project (110 Big Bore)
    1972/73 US 90 Green
    1977 ATC 90 w/83 110 motor (Fugly)
    1982 ATC 70
    1983 ATC 70 (Ladybug)
    1973 ATC 70

    1965 Marketeer 3 Wheel Golf Cart with 1986 Honda 250 drivetrain

    TF 2015

    Other
    1983 Honda Z50
    1978 Honda XL75

    Feedback http://www.3wheelerworld.com/showthr...ck-for-coopool
    http://www.3wheelerworld.com/showthr...k-for-coolpool

  5. #5
    Join Date
    Nov 2019
    Location
    Florida
    --
    1,044
    250sx, best all round 3 wheeler ever.
    add a rack or not, its still a very fun and capable machine.
    Added a 200x front end and possibly a rear disc brake could make it perfect.
    MrC.
    mrc_builds on YouTube Channel

    https://www.youtube.com/channel/UCmw...confirmation=1


    My Addiction
    85 200m "Tallahassee"
    84 200x "SouthPort"
    84 200x "Van Halen"
    84 250r "lucky"
    85 250sx "Enterprise"
    85 350x "The Money Pit"
    85 350x Code Red
    86 250r "Unicorn"
    86 trx250r
    88 Lt250r Suzuki

    mrc_builds saves trikes like Jimmy Swaggart saved souls back in the day -said Patriot1

  6. #6
    Join Date
    Feb 2021
    Location
    NC
    --
    10
    I love my 85 250sx, wouldn't trade it for anything!

  7. #7
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    We got it! I did end up giving him the whole $1200. It starts right up and runs good. Carb does leak a little, but we were going to run carb through the ultrasonic cleaner anyways. Were going to pull rear diff today and pray the gears are salvageable. I went on ebay to buy the used diff i found... and realized it was from a 250es... but also included in the description 250sx so I didn't order it yet. I want the tall gearing of the oem diff if I can find it. Im not sure how many posts I need add pictures but ill keep adding to this post to get my numbers up.

  8. #8
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Here it is
    Attached Thumbnails Attached Thumbnails IMG_70281.jpg   IMG_70261.jpg  

  9. #9
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Turns out rear diff ring and pinion gears are great. Its were axle splines and diff are wasted... so ring gear is part of that... going to try a better axle and that will probably get it going.

  10. #10
    Join Date
    Feb 2021
    Location
    NC
    --
    10
    That SX looks good!

  11. #11
    Join Date
    Apr 2014
    Location
    Edmond, KS
    --
    2,531
    I bought a 250ES that had the axle splines stripped at the ring gear. I didn't want to take a chance so I bought a used diff and axle. That's just a warning to be careful. You may end up buying another axle as well as a diff.

  12. #12
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Well... I think I have a plan, this might turn into a cool custom build. A honda 300 fourtrax (utility style) is the same gear ratio as big red 250es so if im going to have to live with that ratio im gonna mate the fourtrax diff and axle onto the sx swingarm. The reason is the fourtrax whole rear-end is available piece by piece brand new for very reasonable prices. Ring and pinion set with bearings and seals for like $125, rear axle hub to hub with nuts $130. Plus I have a complete rear-end (my spare) laying around. Im searching for another swingarm to actually modify then swap in. Ill try to take lots of pics so I can post.

  13. #13
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    It will bolt on the swingarm and driveshaft should be just fine. Only have to deal with one side.
    Attached Thumbnails Attached Thumbnails 20210228_013247.jpg  

  14. #14
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Honda 300 fourtrax rear end mated to honda 250sx. After I add some gussets I'll cap off and maybe shorten the original swing arm axle mount square tube. We went for a short ride Sunday night and it feels good. And like I said previously..... 100% of the parts are available for cheap. Now to figure out what size rear tire to put on to make up some of the lost gearing.
    Attached Thumbnails Attached Thumbnails 20210309_162334.jpg   20210309_162303.jpg   20210309_161836.jpg  

  15. #15
    Join Date
    Nov 2020
    Location
    Pine barrens
    --
    30
    Disc rear brake conversion in the works. I just have to wait for a rear caliper in the mail. I have the disc,hub and mounting material just need some dimensions.

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