Exhaust valve giullitine chatter

[foxyrider]

How much "slop" should the giullitine valve have in the exhaust valve base? Have quite a bit, but never noticed until I rebuilt the top end in my '09 700 RMK. Before the rebuild it seemed to run smoothly. At start up after rebuild, a lot of what sounds like valve chatter. Possible that the higher compression from new pistons over 2000 miles on old pistons is causing valves to chatter from "slop"?

 

[zalez]

did you check your springs on your exhaust valves? I think moisture gets in one side. I had one clearly sacked out with rust and the bellows was pretty weak.

 

[foxyrider]

Springs intact. Bellows not new, but still provide blow back from hose fitting when giullitine is pumped.