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Thread: 350X countershaft stripped

  1. 06-23-2014, 08:47 PM #1
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    matt3x
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    350X countershaft stripped

    So, first of all - let me say that I love the 350X. I never really put any seat time on it before Trikefest this year. We arrived at Haspin wednesday night, and I rode it all day Thursday without problem, it loves the trails and ate them up! Most of friday as well. And then... well... I was out riding and the countershaft splines were suddenly gone, so it was done for the weekend . Luckily I had a back-up trike.

    What are my options for getting this fixed? What's the best way to do it and the worst? If you aren't familiar, the countershaft is what the front sprocket attaches to in order to drive the chain forward. No splines = no movement.

    Is this a somewhat common issue on these trikes? I'm getting a quote from a local mechanic to crack the case and replace the shaft but I didn't really want to have to go through with that if I didn't have to.

    I've also heard of just welding the sprocket on and then if you ever need a new sprocket or need to get it apart, just grind down the weld.

    Opinions? Any other options? Pros and cons of each way? I didn't really want to dump a ton into this trike as it's just a trail machine/rider, but I want it to last as well.

    Looking for all the help I can get it... and no I'm not familiar or comfortable enough to crack open the case myself and go through with that.

    Thanks!
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  2. 06-23-2014, 08:56 PM #2
    just ben's Avatar
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    Do it right the first time and it will last another 30 years. It would also be a good time to measure and replace any worn parts in the top end.
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  3. 06-23-2014, 09:01 PM #3
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    Quote Originally Posted by just ben View Post
    Do it right the first time and it will last another 30 years. It would also be a good time to measure and replace any worn parts in the top end.
    Do you recommend anyone in the WNY area if I can't do it myself?

    I have a full honda service manual for the trike. I think I'll read through it a few times... maybe it is something I can tackle... not sure.
    Last edited by matt3x; 06-23-2014 at 09:10 PM.
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  4. 06-23-2014, 09:06 PM #4
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    ironchop
    ironchop is offline Power User The day begins with 3WW
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    Do NOT weld it. Anything but that. Cracking cases only looks daunting. With a good manual, a clean work surface with a basic set of tools and some basic organization skills to help keep parts clean and ready to reinstall, makes it really easy to remember how it goes back together. If that still sounds like more than you want and you don't mind spending money then take it to a reputable and qualified mechanic.

    Just dont weld it. A 350X will last forever if properly maintained and its resale value is deeply dependent on condition.
    Last edited by ironchop; 06-23-2014 at 11:12 PM.
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  5. 06-23-2014, 10:15 PM #5
    jeswinehart
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    personally, I would weld it ~ IF ~ the shaft is truly shot and nothing else is wrong.

    The little keeper is in place correct (#21) ??? # http://www.bikebandit.com/1985-honda...m1916#sch20297
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  6. 06-23-2014, 10:58 PM #6
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    If you go the welding route be sure to use only OEM Honda welding rods
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  7. 06-24-2014, 06:37 AM #7
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    Quote Originally Posted by matt3x View Post
    Do you recommend anyone in the WNY area if I can't do it myself?

    I have a full honda service manual for the trike. I think I'll read through it a few times... maybe it is something I can tackle... not sure.
    Josh at motion craft is very good and will do it at home on the cheap. I have never done a350x engine but I have done several others. It seems a lot more intimidating than it really is.
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  8. 07-08-2014, 10:38 PM #8
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    Thanks for the tip Ben - going to call Motion craft tomorrow and hopefully I can get a hold of Josh. If I had the room I would probably attempt this myself but I just don't right now. I wouldn't mind having the whole engine looked over anyway. Posted a few pics of the damage. I also have a spare shaft... I'm assuming it's the right one. Will update this thread with results, etc.
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  9. 07-08-2014, 10:57 PM #9
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    Glad to hear you're doing it right. Was not wanting to post this photo in disgust.
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  10. 07-08-2014, 11:26 PM #10
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    I'll give you a free countershaft if I have it and I fairly certain I do.

    Just pay shipping. Note that I am scrambling right now to get to see the first TRIKES run on a pro MX track. It's also the same weekend as the Quad Nationals and watching them fly over dirtbike jumps would be awesome as well. So, I won't be shipping this week unless I have the time i which case I will. Finding it is step one......

    EL Cami - are you North or South now? Would be great to meet you at one of these events!!
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country
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  11. 07-08-2014, 11:34 PM #11
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    Quote Originally Posted by Dirtcrasher View Post
    EL Cami - are you North or South now? Would be great to meet you at one of these events!!
    Cancun (pretty far South). Just opened a jug of rum, how soon can you get here?
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  12. 07-08-2014, 11:36 PM #12
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    As soon as they make me a drone capsule......
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country
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  13. 07-09-2014, 01:02 PM #13
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    Can anyone confirm this is the right shaft? If not, I'll be in touch with you DC.

    Also, how does the sprocket look?

    Click image for larger version.  Name: IMG_2431.jpg  Views: 22  Size: 1.11 MB  ID: 197008Click image for larger version.  Name: IMG_2430.jpg  Views: 33  Size: 2.95 MB  ID: 197009
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  14. 07-09-2014, 03:10 PM #14
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    YIP, thats it. I'll try to look today or tomorrow OK??

    DC
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country
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  15. 07-09-2014, 09:10 PM #15
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    Quote Originally Posted by matt3x View Post
    Also, how does the sprocket look?

    Click image for larger version.  Name: IMG_2431.jpg  Views: 22  Size: 1.11 MB  ID: 197008Click image for larger version.  Name: IMG_2430.jpg  Views: 33  Size: 2.95 MB  ID: 197009
    Using a used sprockets is like using a used condom. God only knows where it's been. If that wasn't used with the chain you have toss it in the scrap bin.
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