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Thread: ATC 250SX Engine Mockup

  1. 11-23-2013, 03:56 AM #1
    Flyingw's Avatar
    Flyingw
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    ATC 250SX Engine Mockup

    With all the 250SX and ES carbs I've been rebuilding lately, my SX has been sitting partially disassembled waiting for the next carb to test. It's getting to be a drag having to put it back together just to putt it around. The solution!!!!!!!! An engine mockup. Hell, I have everything to make it happen EXCEPT for an exhaust system. I need a useable head pipe and muffler. They both can be in so/so shape. It won't be going on a trike but it needs to work. Rot on the end of the muffler is acceptable.

    I bought a 99.00 work cart. I have an SX motor mounted to a cutoff lower engine cradle. All I have to do is mount everything up. I'm going to feed the carb with a small lawnmower tank mounted above the engine. I have all the electrics so this should be pretty easy.

    This is a cheap build so the cheaper the better for my budget. SX or ES exhausts will work. Anyone help a Brother out?

    This is what my SX looks like most of the time lately

    The other is the start of the project.
    Attached Thumbnails Attached Thumbnails 100_1199 (Copy).JPG   100_1198 (Copy).JPG  
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  2. 11-23-2013, 04:21 AM #2
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    Dirtcrasher
    Dirtcrasher is offline Power User Catch me if you can
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    Very very nice!! You just LOVE working on these things dontchya!!

    I'm surprised your wife doesn't clobber you!

    Sweet idea!
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country
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  3. 11-23-2013, 04:29 AM #3
    Flyingw's Avatar
    Flyingw
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    It makes sense. Right now I'm debating on whether to rebuild the motor so I know its condition. The motor came out of a chassis I bought earlier this year. The wiring is going to get unwrapped and cut to length (I'm anal). I should be real convenient to test carbs with a setup like this.
    Last edited by Flyingw; 11-29-2013 at 12:41 AM.
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  4. 11-23-2013, 12:38 PM #4
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    MRSOUND
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    PM sent on exhaust.
    insanity - Doing the same thing over and over and expecting a different result

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    86 honda big red
    85 250sx
    82 250r
    86 klt 185 black (project)
    86 klt 185 red
    85 klt 160 (Floyd)
    85 klt 110 X2 (projects)
    86 klt 110 X2
    84 klt 200
    84 atc 70
    DUCKSTER!
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  5. 11-24-2013, 12:52 AM #5
    Dave Little's Avatar
    Dave Little
    Dave Little is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    I figured you'd have to do something like this sooner or later.
    Quote Originally Posted by glamy View Post
    I`ll show you mine if you show me yours......i like the little clicks around here you`re so cute !! You guys need a bag ......for your tools ?
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  6. 11-24-2013, 12:54 AM #6
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    Flyingw
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    Ya, I've been pondering this for a while
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  7. 11-27-2013, 04:36 AM #7
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    Flyingw
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    If I'm going to do it, I might as well do it right. I'm waiting for an exh system, airbox, solenoid, fuel tank, Fuel valve, and ignition coil to show up but for now, I got the control panel, choke, and throttle figured out. I can get some of the wiring done while I'm waiting. Don't look at my welds too close. I'm still learning.
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  8. 11-27-2013, 09:20 AM #8
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    MRSOUND
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    Wow...Taking it to the next level! I like it! You need anything else before I ship exhaust Friday?
    insanity - Doing the same thing over and over and expecting a different result

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    86 honda big red
    85 250sx
    82 250r
    86 klt 185 black (project)
    86 klt 185 red
    85 klt 160 (Floyd)
    85 klt 110 X2 (projects)
    86 klt 110 X2
    84 klt 200
    84 atc 70
    DUCKSTER!
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  9. 11-27-2013, 10:25 AM #9
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    Nope, I'm good to go.
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  10. 11-29-2013, 12:39 AM #10
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    Flyingw
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    I know this is kind of a stupid project but for what I will use it for makes sense. In addition to checking carbs, I can test a freshly rebuilt motor before committing it to the frame. I can test starters, CDIs, stators, solenoids and so on. When I know it works, I'll pull the motor and give it a bath and a fresh shot of rattlecan just to clean it up and the engine mounts will get powder coated red. I received my fuel tank yesterday so I made a mount out of a couple of 250R engine mounts and attached it to the mount on the head. I also mounted the solenoid, regulator, and made some battery cables.
    Attached Thumbnails Attached Thumbnails 100_1259 (Copy).JPG   100_1260 (Copy).JPG   100_1261 (Copy).JPG   100_1262 (Copy).JPG   100_1263 (Copy).JPG   100_1264 (Copy).JPG  

    100_1265 (Copy).JPG  
    Last edited by Flyingw; 11-29-2013 at 01:37 AM.
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  11. 12-15-2013, 08:05 PM #11
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    Flyingw
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    Just finished the wiring. I have lights and ignition. I need a better inline fuel valve otherwise I'd fire it up now. I still have the support bracket for the airbox to make and see what I need to do to support the muffler.
    Attached Thumbnails Attached Thumbnails 100_1286 (Copy).JPG   100_1287 (Copy).JPG   100_1288 (Copy).JPG   100_1289 (Copy).JPG   100_1290 (Copy).JPG  
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  12. 12-15-2013, 09:42 PM #12
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    Xowner
    Xowner is offline Dirty Main jets are my bane. 4 Wheels? Huh?
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    FlyW care if i move this to the Trikesylvania section so more people can see this awesome start cart!?
    An F-16 turned the after burners on and banked HARD over my house, I ran outside grabbed my Bud Light and Yelled as loud as I could................

    GIT IT RAG!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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  13. 12-15-2013, 10:22 PM #13
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    No, not at all.
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  14. 12-15-2013, 11:14 PM #14
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    pretty sweet man! that cart looks like it should have been in a honda dealer's shop for dianostic's back in the day!
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  15. 12-15-2013, 11:42 PM #15
    tri again
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    Holy smokes..x2 on the teaching tool too.
    I got an inline shut off from the lawnmower/motorsports shop.

    Cheap looking black plastic with a red twisty valve for a buck.
    Want me to send it to you?

    That really should have a brass and glasss time machine fancy looking
    intravenous feeder imo.

    Gorgeous.
    Pretty sure the wife would slap me on her way out of town if I had one of those, but then I could put it in the living room.

    Simply love the oem keyswitch.
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