Hi Don. Thanks for the reply. I cleaned and blew out everything. I forgot to mention I had the thing reving up then decided to pull the exhaust pipe & muffeler to clean the baffle and paint it. While the paint was drying I pulled the head and decarbonized it. I wonder if there is an obstruction in the air box. The darn thing is really jammed in the LX. It reved before now it doesn't and only change was putting on mesh air cleaner and pushing it on the rubber flange of the air box. Not good to leave out all the details huh? I really enjoy your comments on the site and appreciate all the help and advice you give here. Larry