346xp

[ScottSpencer1]

Any ideas on this has had new clutch, piston and gasket seal clatters once warm and vibrates a lot 

[Stubby]

Cant tell from the very short audio clip .  Out of interest was the new piston OEM or Chinese copy ? . Is there a broken AV spring perhaps >

[ScottSpencer1]

All genuine parts and had new Avs not long ago @stubby

 

[stihlmadasever]

Check the pull start housing and mechanism

[spudulike]

That video is not much use but these usually make a clattering noise from a worn clutch so the new one should have sorted it.

The pawls on the flywheel may be stuck or sticky and may be snagging on the flywheel at idle -they should open against the spring pressure and keep from rubbing on the recoil pulley.

Other than that, the vibration may be that the wrong location bolts have been used in the bottom of the top handle and are knocking the underside of the oil tank or the av limit screws by the clutch and flywheel are not correct or don't have the rubber buffers fitted.

[ScottSpencer1]

Thanks spudulike the bottom handle screws are wrong and the crank bearing have had it but I can see now how the screws are hitting the bottom thanks once again 

[spudulike]

The side handle screws are probably the short ones that should be in the bottom and the long ones in the bottom, should go in the side of the handle, seen it before, usually when the tank gets holes?