RE: Zenoah 62 broken exhaust mount. Help please.
Mufflers can come loose for a variety of reasons. It is not a Zenoah problem but a user one. Improper mounting of muffler, no loctite, or wrong loctite, using gaskets, wrap around mufflers with no backside support., non balanced propellors, etc. I have a couple of Zenoahs that are over 20 years old and so are their mufflers as well as their bolts. I think a DLE muffler will biodegrade before it gets 20 years old. Lol.