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swingarm bushing tube.

Discussion in 'The Garage' started by koyuga, Jan 17, 2018.

  1. koyuga

    koyuga XS650 Enthusiast

    Just put some new Bronze bushings in my swingarm

    trying to fit a swingarm tube that has only been fitted once before,

    But I fear I may have been a little too forceful fitting it earlier as it wont go thru the new bushings.

    Any tips, ie clean it up on lathe??

    or just get a new one??

    cheers

    Greg
     
  2. YamadudeXS650C

    YamadudeXS650C Central New York XS650 XS650.com Supporter Top Contributor

    The bronze bushes are fairly soft metal, and can deform upon installation, disallowing the tube from going through. If this happens, the bushings can be reamed internally.
    >What was your method of bushing installation?
    >are you trying to fit the inner tube into the bushings prior to actually installing the arm?
     
    gggGary likes this.
  3. gggGary

    gggGary I'm listening, change my mind XS650.com Supporter Top Contributor

    A few of the aftermarket bronze bushing sets have been found to be undersized even before they've been pressing into the swing arm bores.
     
    YamadudeXS650C likes this.
  4. YamadudeXS650C

    YamadudeXS650C Central New York XS650 XS650.com Supporter Top Contributor

    TwoManyXS1Bs and gggGary like this.
  5. I did the same thing and used a brake cylinder hone to clean them up.
     
    Last edited: Jan 18, 2018
  6. fredintoon

    fredintoon Fred Hill, S'toon. Top Contributor

    Hi koyuga,
    what I did was to rent a 22mm adjustable hand reamer from the local tool rental place (as I remember the cost, $20/day)
    to ream the bushings in line in place to get the bearing sleeve to fit nice.
    Then I found the sleeve was too short. Filed the bushing flanges thinner to fix that.
     
    TwoManyXS1Bs and Jim like this.
  7. koyuga

    koyuga XS650 Enthusiast

    Thx for all the great info. Didn't check the bushing internal diameter.
    When I put them in I froze them and heated swing arm. Used a socket and hammer to bed them.
    Will try to get a reamer and give them a home.
    Thx guys
    Greg.
     
  8. koyuga

    koyuga XS650 Enthusiast

    thx guys.

    10 mins with a reamer and perfect.

    cheers
     
    gggGary and YamadudeXS650C like this.
  9. YamadudeXS650C

    YamadudeXS650C Central New York XS650 XS650.com Supporter Top Contributor

  10. fredintoon

    fredintoon Fred Hill, S'toon. Top Contributor

    Hi koyuga,
    you did good so far. Next thing to fix is the less-than-optimum stock pivot.
    Make sure the swingarm bushing flanges are filed down enough that bearing sleeve sticks out enough to let the swingarm drop freely
    when the throughbolt is tightened.
    Ditch the M14-ended stock throughbolt because the end will bust off if it's tightened enough to keep the bearing sleeve from turning
    with the swingarm so the actual bearing becomes the sloppy steel on steel fit between the sleeve's bore and the throughbolt OD.
    MikesXS's M16-ended replacement ain't much better. I used a solid throughbolt from a Suzuki and tightened it's Nylok nut until my eyes bulged.
    You'll have to put a grease nipple into the swingarm cross-tube if you use a solid throughbolt. You should do that anyway if you think about the
    torturous path the stock system forces the grease to take to get to where it's needed.
     
  11. koyuga

    koyuga XS650 Enthusiast

    Hi Yamadude,

    The decal is a custom job from a graphics guy.
    Some may recognise it as a copy of a Vincent.

    Hopefully I won't be sued.

    Fredintoon,
    That's all great info. Will get onto it.
    Have already put a grease nipple in the swingarm.

    Cheers.
     
    YamadudeXS650C likes this.
  12. fredintoon

    fredintoon Fred Hill, S'toon. Top Contributor

    Hi koyuga,
    don't sweat the lawsuit. I've seen that background scroll on statue plinths and tombstones, you're OK so long as you don't put the Vincent name on it.
    Same as the Yamaha decals styled to look like Triumph, Norton or Velocette decals.
    And FWIW, I've had two M14-ended throughbolts break off. First one was at highway speed, luckily my son was riding and had the dirt-riding skills to keep the bike upright after it's back wheel locked solid when the thoughbolt fell out in the street leaving a 100 foot long black line on the pavement as witness.
    Second one I caught perhaps 2" out when pushing the bike out of the garage.
     
  13. Don’t worry about getting sued. You are not attempting to to make money of a copywritten product.
     
  14. fredintoon

    fredintoon Fred Hill, S'toon. Top Contributor

    Hi peterg,
    unless you are creating something that's reminiscent of a Harley-Davidson.
    Remember when they tried to copyright their exhaust note?
     
  15. Too true Fredintoon. Didn't that application get shot down in laughter? Or HD gave up the fight?
     

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