Muffler Baffle Removal??
 

I have an OS 61FX. Would it be ok to remove the baffle thats in the muffler? Could I hurt the engine? Would I loose that backpressure that pressurizes the fuel tank?




Thanks.

RE: Muffler Baffle Removal??
 

It's a common modification. It makes the engine louder in exchange for a bit more power. There might be a reduction in tank pressure, but I've never heard of it being noticeable. The engine will experience less backpressure, but that's good, that's where the RPM increase comes from.

RE: Muffler Baffle Removal??
 

Thanks again Montague for sharing your wisdom.

RE: Muffler Baffle Removal??
 

Just an update:


I removed the baffle from the muffler. I also reset the carb back to it's factory setting. I followed all of the advice I found in these forums on tuning my engine. I tell you this engine has come to life! It has so much more power now. I put my tach on the shaft and was reading 12000 RPM with a 12x8 prop. The engine is hotter, but not so hot you can't hold your finger on it for a few seconds.



Many thanks to everyone at RCU that has helped me get my plane flying.




:D:D:D:D:D:D:D:D:D:D:D