I don't remember you ever saying in the beginning of this thread to check the spark plugs. No need to slap me in the face with inaccurate expectance of what a good mechanic should do.
As for JD, I was lucky the tech found those problems. VERY LUCKY!!!. Because I found yesterday he didn't know how to properly adjust the vac relief. There was a 3rd nut added to adjustment. I called to ask why he did that and he said when he went to tighten the lock nut, the BOLT WAS SPINNING, so he put on the 3rd nut to lock the adjusting nut. This was after they decided to lecture me on how my vac should be set at 12.5, when my manual says 13. FKING IDIOT! We pay these companies TOP DOLLAR for their so called CERTIFIED SERVICE!!!!
So that left the nut against the spring to move. On top of that, he put my lid on the recovery tank backwards, allowing water to go over the middle baffle and right through my BRAND NEW blower
So I had to stop what I was doing, clean blower filter, and run fresh water through the blower to rinse out all the cleaning detergents that went through the blower and heat exchanger. I WAS SO PISSED OFF.
Now you guys know why I didn't go to JD first to diagnose this problem.