ORIGINAL: yarom
Not so far, but the vibration is higher than usual for any engine I owned. I am checking the header and canister after every flight.
It also transmits vibrations into the fuse through the canister, which is not good...
I am having a heck of a time finding the right needle settings. I have some weird missing or surging at about 1/3 throttle that I cannot seem to be able to get rid of. I went to both the righ side and the lean side and nothing seems to help.
ORIGINAL: jrjohn
Just bought a DA-85 today, this muffler issue is not good news. I wonder if the guys using a canister with a flex header are experiencing cracked headers??
John
I'm talking to one muffler manufacturer about building a side muffler, (simular to the stock DA-50 muffler) the weight would be nearly half of a pitts wrap around and much less prone to cracking. In addition to that, little or no cowl hacking in order to get it to fit. I wonder how many guys would be interested in this style muffler?