seems to be a common issue. Lots of posts on FB about it. One guy said the following-
"Anyway, I posted on another page and Boris Maryonovski (owns Street Machinery in Euclid Ohio) saw my post and hooked me up. They machine a tensioner pulley that doesn't need the shim. Puts everything in correct alignment. INSTANT QUIET! And it's only$50."
Might help someone out. Have yet to fire mine up but expect to hear some chirp based on all these issues..
