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Thread: 350X Frame gussets and welding - another one for your pleasure!!

  1. #1
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,457

    350X Frame gussets and welding - another one for your pleasure!!

    I have another 86 350X frame here to do for a 3WW member thats local. He can reply if he wants to be known....

    I guess the shipping scares guys away but according to GOAT it may be possible to ship them cheaper than some people assume. It does take a good 6-8 hours to fab the gussets, remove the paint and mig weld them back in place. It all went very well though......

    I have some other pics to add but can't find my KODAK camera manual and I need to swap them from internal memory to the memory card which of course is impossible to do by the menu I'll post them up when I figure it out

    Sadly, even the 86 frames with the updated wrap crack so it had to go - BYE BYE!!

    I added another gusset this time to the lower frame rail, I've never seen them break there but it looked lonely and seemed to want some friends Only took a bit more time so what the heck.

    Here's some pics:











    You can see here how I get that frame wrap to tie into both the upper and lower gussets I fabricate, IMHO that should make it SUPER STRONG!!





    Never, EVER use that stock frame wrap (yes, even 86 model) and motor mount without beefing it up

    The shock pushes UP and the frame and your weight push down. The one single mount on the left side takes allot of abuse. BEEF IT UP!!

    I may even weld another small boss or two to that motor mount that absorbs all the stress before I finish. Thank god I have a spare naked motor to line everything up.......

    Roy AKA "TANKS350X" said "Hey, don't make it better than mine" but it's all a learning experience and you learn from each one and apply that to each new build :

    It should be done soon, I still have to finish the motor mount and the rear seat pin area that cracks. Some people talk about the neck twisting, I haven't seen it or done it myself yet (DC knocks on wood) If you roll it that hard I may as well make the whole frame out of .250 tube and plate
    Last edited by Dirtcrasher; 08-24-2009 at 06:50 PM. Reason: More to say AGAIN
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  2. #2
    Join Date
    Apr 2008
    Location
    somerset ma
    --
    1,822
    Even though I'm partial to mine Just because it is It's coming along nice. Another super job as usual
    My rides, 1985 ATC 350X, With legit Lamborghini Countach paint,2003 Harley Davidson FXDL Dyna Low Rider,customised the way I like it! 1997 GMC Sierra is gone, primary mode of transportation, 2008 Toyota Yaris!

    Check out my build thread of my 350X
    http://www.3wheelerworld.com/showthread.php?95389-Tank-s-1985-350X-build-is-FINALLY-all-done!-)
    Screw giving away the Harley, It's payed for!!

  3. #3
    Join Date
    Jul 2009
    Location
    In the sand
    --
    93
    That's nice work. Gusseted in all the right spots too.

  4. #4
    Join Date
    Jun 2005
    Location
    Jackson MI
    --
    1,688
    Hey DC your work looks NICE!!! Just a suggestion - on Goats 350x I put an extra motor mount on the opposite side of the engine where the bracket breaks the left side down tube. I ran the mount straight up under the top shock mount. Along with a triangle gussot for side load

    I really don't understand why Honda would put a mount that close to the Chain (Major torque point) and only connect It to the one point on the Frame

    83 ATC 60-R Cr60 converted with Zinger parts.
    83 ATC 70.
    83 Tri zinger
    ATC 85-R Cr85 engine on shortened 86-R frame.
    ATC450AF
    86 310-R Drag racer
    440 snowmobile powered custom built.
    87 Cr 500 Converted to Drag racer

  5. #5
    Join Date
    Nov 2002
    Location
    Kirkville, NY
    --
    3,831
    Looks nice! I need to do that to mine as some point. I have already welded up a cracked left side tube and still have 2 other cracks to take care of (and I don't ride that hard, must have been the previous owner ).
    1984 Yamaha YT 60 Tri Zinger(current project)
    1983 Yamaha YTM 200 (rear suspension kit)..... long term project
    2004 BMW R1150R
    1972 Honda CT 70
    2007 Lifan 110

  6. #6
    Join Date
    Apr 2008
    Location
    NW, IND.
    --
    842
    +1.... nice fab and good welds DC..Beets
    80' Honda CR80R
    78' Honda XR75
    77' Honda CT-70
    74' Honda CT-70
    75' Yamaha GT80 Enduro
    76' Kawasaki KZ900
    73' Kawasaki H1-500
    76' Kawasaki H1-500
    They always run best before they blow!
    Manuals: http://www.oscarmayer.net/atc/manuals/


  7. #7
    Join Date
    Oct 2003
    Location
    STL
    --
    3,560
    dead seksy! Good job person
    TrikeFest 07,08,09,10,11,12,13,14 SandPuppie's Ride 07,08,09 Imperial Invasion 09, 13

  8. #8
    Join Date
    Oct 2007
    Location
    Grosse Tete, LA
    --
    3,440
    I've never understood how the welds where the swinger bolt goes through actually manages to deal with the pivoting of the suspension. With the motor in front and the rider either laying weight on the pegs or the rear subframe, we're talking some serious stress.

    DC...intake tube...gusset it. A lot of people don't realize that when they gusset a frame they completely change the way that it absorbs stress. I asked for gussets everywhere except on the big beefy backbone only to come to the conclusion, and have it confirmed, that a very rigid frame will transfer a lot of stress to that area. Shouldn't need much, just a reinforcement where the two smaller pieces of tubing meet the backbone.

    Stand back and look at it and you'll see just what I mean. Like I say, I don't know crap about bikes, but I can break anything.


    EDIT: I shipped my frame to Jason after Louis said it was easier and cheaper than people realized. Bring it to a UPS distribution center, and try to get them to take a few inches off the subframe when measuring, afterall that is flat area, and explain things can be easily stacked ON that portion.

    I wrapped mine up with shop towels, electrical tape, and saran wrap. Worked just fine.

  9. #9
    Join Date
    Oct 2005
    Location
    Quahog
    --
    143
    Steve,
    Nice welds, its looking really good. Cant wait to have that back. Now I will just have to choose a color to powder it....

  10. #10
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,457
    Glad you posted up It's suppose to cool down tomorrow/Fri so I'll get it done then!! If you wanna swing down Sat or Sun let me know even if you just want to check out the track and take a rip.....

    I wish more guys lived closer or were willing to pay the shipping costs (or at least look into it), I feel real good about these frames when there done

    I'd buy frames, brace them and resell them but I think with a rough cost of 300$ give or take that allot of people wouldn't want to do it. Maybe as more of these frames fail I can do a few more.

    For some reason, people will buy an 800$ shock, 300$ on tires and rims, dump 1000$ into there motor and 300$ on new plastics without investing 200$ into a frame that outlives everything else

    I'm trying guys, really am trying to keep the costs down as much as I can and still make a profit.......
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  11. #11
    Join Date
    Oct 2005
    Location
    Quahog
    --
    143
    Steve, I have a frame that you can have to get the ball rolling, its a 86 but it needs some work which we know you can handle. I'll drop it off when I pick this up.....

  12. #12
    Join Date
    Jun 2016
    Location
    Oregon
    --
    31
    Looks like really good work

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