Engine knocking sound!?

[Evader53]

Ok, since our last ride, one of our quads has been making this small knocking sound and makes the quad vibrate a little when just idling

This goes away when I pull the clutch in but once I let it out it starts again... It is not like the quad is shaking, but vibrating and you are able to hear an audible knocking (not very loud)

Is this something I need to have checked out?

The quad had a full tune up (including valve adjustments) not but 4 or 5 rides ago.

Help please!

--Evader

P.S. The quad is a warrior

[dave76]

Hmm sounds like it could have somthing to do with your clutch or mainshaft since it goes away when the clutch is pulled.

[JasonP]

Mine is starting to do the same thing. I first thought it was the rod bearing letting go but everytime I put the clutch in the noise goes away. I think it might be the throw out bearing.

[GOTFEAR]

You can shim the inner basket to take play out make basket run true again.