Bent Linkage?

2 replies to this topic
  • kheiney

Posted January 20, 2010 - 09:15 AM


I finally decided to check my swingarm linkage after owning this bike(yz426) for 2 years. The last owner had just rebuilt everything before he sold it. I thought I was safe since I only ride a dozen times a year. I found some rusted bearings on the lower shock mount and the swingarm did not move freely and would even hold the weight of the rear tire off the ground! Once I got the linkage apart I found another rusted bearing where the two parts connect. After I got the linkage separated I went to put the bolt back in so I didn't loose anything and it would not go in smooth. I had to pound it out so I guess I know why.

Posted Image

Posted Image

I measured the length of both arms of the U and they were 30 thousands difference. Anyone ever have this problem before???

P.S. I scored an entire linkage with bearings off Ebay for $25

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • CaptainKnobby

Posted January 20, 2010 - 10:22 AM


cant say ever had it to happen to me. Almost sounds like the nut had worked off at some point and the bolt came parcially out and bent the connecting rod or stressed it some.

  • YamaLink

Posted January 22, 2010 - 08:27 AM


Pretty darn difficult to bend the connecting rod or rocker; usually bearings explode before any bending of metal.

As stated the #1 issue with pivot or bolt holes is improper torque. Then the "fun" begins.

Related Content


yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F

Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.