On the last lawn tonight I blew the muffler on one of my Lazers about 900 hrs? (hour meters been broke). Just happened to be the one I was operating. Had my Peltors on and didn't know until I got it on the trailer. It didn'nt sound right and was glowing red, the whole thing turned to rust by the time I got home, 5 minutes. Unfortunately one of my other Lazers is in my shop, been to busy to finish working on it. The grass is really growing fast here so I may have to get the old GrassHopper out tomorrow. My dealer is great and stocks alot of parts so I should be able to get one by Monday at the latest. This just reminds me to make sure I always have a back up ready to go.