Star Yamahas squeak

TheGetFresh wrote:

What is the CA on the works KYB shock. Why would it squeak. Why would a check valve squeak. 

TheGetFresh wrote:

What is the CA on the works KYB shock. Why would it squeak. Why would a check valve squeak. 

Larry450 wrote:

Ok. I am pro suspension guy with years of experience working with many factory teams. CA is short for canadian armadillo. Sometimes we put a ca...

Ok. I am pro suspension guy with years of experience working with many factory teams. CA is short for canadian armadillo. Sometimes we put a ca in to the shock if the telemetry thing is broken. After the race the armadillo tells us hows the race was and the data is pretty spot on. Here is vid of it squeking out of the shock.

https://youtu.be/Hd13L6suXCY?si=0jf9u1JvLGgK7F87

Rickyisms wrote:

I believe it was Eddie Larret (sp?) on one of Keefer’s shows who said when he was an SX mechanic they would go super light on...

I believe it was Eddie Larret (sp?) on one of Keefer’s shows who said when he was an SX mechanic they would go super light on linkage grease in SX to create a stiffer chassis movement, pack it full for outdoors. 

Luxon MX wrote:

As long as there's some grease in the bearing, it will preform the same whether it's just a tiny amount or packed full. Makes no difference...

As long as there's some grease in the bearing, it will preform the same whether it's just a tiny amount or packed full. Makes no difference otherwise. I bet most people wouldn't be able to tell the difference between no grease at all and packed full (up until when it seizes at least).

PNWMXer wrote:

Related story…when I got back into riding in ‘18 after a long time away, I decided to buy a basket case 02 CR250 and fix it...

Related story…when I got back into riding in ‘18 after a long time away, I decided to buy a basket case 02 CR250 and fix it up. While checking it over, I assumed the shock shaft was bent or the shock was empty/galled as it would stick in place at whatever point you compressed the rear suspension. Didn’t mind as it was going to be a frame-up build, but was definitely something I hadn’t seen before. Turned out the linkage was completely rusted solid. Shock was fine. I was amazed that the linkage could be so rusted that it could overcome the shock spring.

StillSmokin wrote:

How does a rebound check valve, sitting in oil audibly squeak loud enough to be heard over a group of 450 engines? That shit doesn't make...

How does a rebound check valve, sitting in oil audibly squeak loud enough to be heard over a group of 450 engines? That shit doesn't make sense to me. Its closed on compression and opens on rebound, so no fluid going through it 50% of the time and the other 50% it allows flow that is nowhere near the speeds of a compression stroke and its a tiny amount of flow anyways as it sits on the end of your rod/clicker port. Somebody explain what part of the check valve is making noise.