YZ 2 stoke linkage slop

Skerby
Posts
1282
Joined
4/9/2013
Location
Mayes County, OK, USA
I have been riding the aluminum frame Yamaha 2 strokes for most of my life. I've noticed that the upper shock bushing (I believe it is a heim joint or spherical bearing) develops play pretty quickly.

How often do you replace this bearing? Any tricks for keeping it running longer?

I used to replace my linkage/ shock bearings at least once a year because I ride in mud so frequently. Eventually learned that I could basically make them last forever if I used the black moly grease, but I am still having trouble with this upper mount. My 125 had almost no up and down play at rear wheel about 10 hours ago, now it is significant.
|
Factor E
Posts
969
Joined
9/22/2011
Location
So Cal, CA, USA
9/29/2020 7:26pm
Bearing quality
use OEM
Skerby
Posts
1282
Joined
4/9/2013
Location
Mayes County, OK, USA
9/30/2020 7:08am
Learned that one the hard way a few different times lol. I'm replacing with OEM part.

I have come to the conclusion that the top shock bearing is a little underbuilt for purpose. Either that or Heim Joints kinda suck. My brother had a PDS 250sx, and while those heims were bigger, they still developed play at around the 50 hr mark.
kb228
Posts
6153
Joined
1/31/2018
Location
Mansfield, OH, USA
10/1/2020 6:25am
Are your linkage bearings new? If theres slop there i can see how it can prematurely wear the upper bearing. You dont want slop anywhere at all in the swingarm area.

Post a reply to: YZ 2 stoke linkage slop

The Latest