How to prevent cracked muffler on 912uls

[Eric Page]

PM sent...

[avidflyer]

The other day I pulled my cowl off on the Kitfox 4 and look what I found. A little bit of fabing up some support pieces, a trip to the welder and $50 and it was all good again. Probably for good this time with the bracing. JImChuk

[AvDES LLC]

The other day I pulled my cowl off on the Kitfox 4 and look what I found. A little bit of fabing up some support pieces, a trip to the welder and $50 and it was all good again. Probably for good this time with the bracing. JImChuk

good thing you found it before the stinger decided to detach in flight. Keep your eyes on the corners of those welds for a while. Typically welds round a corner in an effort to reduce the stress concentration at the weld interface.

[Slyfox]

check your gearbox. static should not fall under 300. just rebuilt my box it was about 250. now it is smooth on shut down and start up. that will crack your exhaust right now.