Hi Bill I'm having a problem with the OS 46AX mufflers. I have lost 5 in the last year or so, have done what some sugested to loosen the muffler shaft and tighten only with two fingers, and then thighten the nut including adding lock tite (blue) and still loosing them, I have adjusted the mixtures to run rich to keep it runnung cool. Bill is there a problem with these mufflers. I have robed all my spare motor's mufflers new still in the box the mufflers. and here locally there are no more to be had, other then buying a new motor.

roltech