BTW: before yesterday I was in my LHS and I saw the new 91FX, O.S HAD SOLVED THE PROBLEM!!!
The new 91FX has a NEW needle support, the same as that of the new 46AX
Why'd it take them so stinkin' long? I purchased mine when they first released that motor (3 to 4 years ago?) I knew about the problem after hours of frustration back then. Why doesn't a company that makes engines for a living figure out the problem and fix it right away? Did they acutally fly this motor befor it was released?