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Thread: Engineering and extending my own 83 200x Swingarm-- Cut and weld pics!

  1. #31
    KASEY's Avatar
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    the biggest issue I see that has not been mentioned,,, the rails on the swinger are not parallel that will be a problem you will have to figure out when you get to it,, and as far as 90 degree cuts they will be more than strong enough,, if welded properly,, I have several stock extended swingers that are still holding just fine..

  2. #32
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    Quote Originally Posted by KASEY View Post
    the biggest issue I see that has not been mentioned,,, the rails on the swinger are not parallel that will be a problem you will have to figure out when you get to it,, and as far as 90 degree cuts they will be more than strong enough,, if welded properly,, I have several stock extended swingers that are still holding just fine..
    Already taken into account. Each rail moves inward at 2.8 degrees, which the extension tubing will be cut at, or leave one side with no angle cut and cut the other side 5.6 degrees
    1983 212x "Mickey Dunlap" Powroll TT Trike -Blue frame, Supertrapp (looking for a Powroll DD), WEB Stage II cam, Powroll 6mm stroker, Wiseco 10.25:1 piston stock bore, ported, polished, +2 Swinger,White low-pros and 250R front fender, BAPP rear shock, Powroll Decals, NOS Carlisle R/A's

    Gone:
    '83 185s, '86 200x, '70's Full Suspension Hi-Performance ATC RD400,

  3. #33
    Poco Loco's Avatar
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    Ive seen you ride Kasey, You dont jump. Your stuff will last forever. I go for the max when I fab. Just me though. Sometimes when I look down, its pretty far. 90 degrees should be fine on a 200x
    Last edited by Poco Loco; 11-21-2013 at 10:16 AM.
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    Last edited by Mickey Dunlap; 02-05-2014 at 06:54 AM.

  5. #35
    KASEY's Avatar
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    Quote Originally Posted by Poco Loco View Post
    Ive seen you ride Kasey, You dont jump. Your stuff will last forever. I go for the max when I fab. Just me though. Sometimes when I look down, its pretty far. 90 degrees should be fine on a 200x
    yeah your probably RIGHT !!!






  6. #36
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    Yeah, Kasey, you don't jump at all.
    And that's the rest of the story. ~ Paul Harvey

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    "What happened? What does it look like happened?!?!"

  7. #37
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    Is it just me, or do KASEY's pics look photoshopped? Because I know that he never jumps... How did you do it kasey? Stunt double? Photoshop? Spill the beans man


    Anyways, did some more drawings and now I think I have the final product.
    BTW, the extensions are cut, one is 1.998", the other is 2.001", so I'm safe there.
    Following mickey's lead, this is what I came up with. The colors are just to signify different parts.
    1983 212x "Mickey Dunlap" Powroll TT Trike -Blue frame, Supertrapp (looking for a Powroll DD), WEB Stage II cam, Powroll 6mm stroker, Wiseco 10.25:1 piston stock bore, ported, polished, +2 Swinger,White low-pros and 250R front fender, BAPP rear shock, Powroll Decals, NOS Carlisle R/A's

    Gone:
    '83 185s, '86 200x, '70's Full Suspension Hi-Performance ATC RD400,

  8. #38
    Poco Loco's Avatar
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    I told minty today at work that when I get home I will be able to see Kaseys pics of him jumping. I totally called it. Well i guess if the tires leave the ground, its a jump. I guess Im a little rougher on stuff.
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  9. #39
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    I will guarantee Kasey jumps that high and frequently and those are not, repeat not, photoshopped.

  10. #40
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    Quote Originally Posted by 86T3 View Post
    Ive been thinking about this and i think i have the best idea for you. Take your swingarm and cut it halfway between the shock mount and the.carrier. Then get another swingarm and cut it right at the shock mount. Take the front half of the first swingarm and trim back half of the second one so you're at your desired length, and weld them together however you want. This way you'll only have one weld and you wont have to worry about matching the material.
    Just finished a 350X swingarm this way and IMHO think it's the cleanest.

  11. #41
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    Quote Originally Posted by RapidRick View Post
    I will guarantee Kasey jumps that high and frequently and those are not, repeat not, photoshopped.
    I'm just busting the guy, I hope ya know that
    Quote Originally Posted by RapidRick
    Originally Posted by 86T3Ive been thinking about this and i think i have the best idea for you. Take your swingarm and cut it halfway between the shock mount and the.carrier. Then get another swingarm and cut it right at the shock mount. Take the front half of the first swingarm and trim back half of the second one so you're at your desired length, and weld them together however you want. This way you'll only have one weld and you wont have to worry about matching the material.



    Just finished a 350X swingarm this way and IMHO think it's the cleanest.


    It may be clean, but that requires finding two 84 swingarms that are in pretty nice shape, which just in themselves would cost about $100 with shipping
    I have just under $50 in this project. In reality, the Only thing I've paid for is the swingarm and the MIG wire.
    1983 212x "Mickey Dunlap" Powroll TT Trike -Blue frame, Supertrapp (looking for a Powroll DD), WEB Stage II cam, Powroll 6mm stroker, Wiseco 10.25:1 piston stock bore, ported, polished, +2 Swinger,White low-pros and 250R front fender, BAPP rear shock, Powroll Decals, NOS Carlisle R/A's

    Gone:
    '83 185s, '86 200x, '70's Full Suspension Hi-Performance ATC RD400,

  12. #42
    Poco Loco's Avatar
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    Quote Originally Posted by RapidRick View Post
    I will guarantee Kasey jumps that high and frequently and those are not, repeat not, photoshopped.
    Really? He actually jumps that high? He's a friggin stunt man. How the heck would you do such a feat? I totally thought it was all a photoshop hoax. Thanks Rapid Rick for coming clean on this. Lets not run this thread off track now. This is a swing arm topic.

    Why would you extend a 200x swingarm? Does this trike have a wheelie problem?
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  13. #43
    KASEY's Avatar
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    instead of a diamond shape I would go all the way back and round it to match the rear housing, I will get you a pict of the last one I did

  14. #44
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    Quote Originally Posted by Poco Loco View Post
    Why would you extend a 200x swingarm? Does this trike have a wheelie problem?
    No unintentional wheelies (going on a 22+ HP 212X) and the rear end will slide around a bit easier as well, which I actually like. I would have gotten a durablue or a new one, but they're outrageous in price, I.E.:
    http://shop.3wheelerworld.com/produc...hp?productid=9
    http://www.ebay.com/itm/Honda-200X-8...p2047675.l2557

    Quote Originally Posted by KASEY
    instead of a diamond shape I would go all the way back and round it to match the rear housing, I will get you a pict of the last one I did
    Sounds good, I'm open to ideas as for a shape. all it is is a .DXF file sent to the water jet, to be cut out of 11ga (.125") steel
    Last edited by rg97; 11-22-2013 at 05:13 PM.
    1983 212x "Mickey Dunlap" Powroll TT Trike -Blue frame, Supertrapp (looking for a Powroll DD), WEB Stage II cam, Powroll 6mm stroker, Wiseco 10.25:1 piston stock bore, ported, polished, +2 Swinger,White low-pros and 250R front fender, BAPP rear shock, Powroll Decals, NOS Carlisle R/A's

    Gone:
    '83 185s, '86 200x, '70's Full Suspension Hi-Performance ATC RD400,

  15. #45
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    yes the plate on the outside is much stronger. i did not suggest it because i thought you wanted to maintain a clean look on the outside.

    if you only use 1 plate per arm you might consider putting it on the inside where the ends will be less noticeable.

    extending it to the carrier won't give you a substantial increase in strength but it will help a little but mainly it will look cleaner and it is important to look good and a good suggestion by kasey imo.

    irregardless of who rode what where, i guarantee you that adding the cross brace i suggested will substantially reduce twisting and it will not look cheesy. just cut a piece a rectangular piece and tape it in there and see if it looks bad to you.

    I added one to a stock 84 Tecate arm when I ran the R and D department for Kawasaki and did a back to back test and could tell the difference. I modified that arm a little further and ran it on my Kawi spoonsored race bile. Jimmy and I also swapped bikes at Saddleback when we were there testing and he said it was good. I figured if it was good enough for the 250 National champ it was good enough for me and for production. I then incorporated it into the design for the production arms on the 86 and 87 models [as you can see in the photo in the link below] along with the bigger fork tubes etc.

    http://www.partzilla.com/parts/searc...ARM/parts.html

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