My either Crazy or that knocking /pinging is BAD...

See the Sticky at Top

how do you go about tightening the pv linkage?
i swear theres a guide on here somewhere, ill look

Its a sticky at the top of the 2-smoke engine forum: http://www.gasgasrider.org/forum/showthread.php?t=9517

Great info with pix. I didn't pre-load the PV linkage very much at all. Just took all the slack out plus a tiny bit so it positively rested at the stop when static.

As I mentioned, much quieter. Taking out the slack didn't really affect PV opening time or rate. I have controlled linear power.
 
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