Hi, I'm just a curious guy and I was wanting to know if it is safe to run a 2-stroke without a muffler. I know it won't harm a 4-stroke because it gives it more backpressure. But, will it harm or blow a 2-stroke? Now, I'm not saying i'll do this, I'm just curious and wanting to know something. So, don't give me crap about quiet is good, because i know that and I'm with that. But, I just want to know a question from you guys that do this. THANKS!
Is it safe to run without muffler?
- Thread starter kdxsam
- Start date
The tailsection of a two-stroke (stinger/muffler) works as a pressure bleed. Removing the silencer will change the pressure bleed and keep heat from building in the pipe, making it act as if the tuned length of the pipe was incredibly LONG. The pipe will be completely out of tune with the engine and the bike will run poorly. Plus only a complete JUGHEAD would pull the silencer off of ANY bike ;)
- Thread starter
-
- #3
Thank You! You answered my question. Wherever I go, I can never get an answer because there is always JUGHEADS that write back and say "Less Sound=More Ground". Which I know is true, but can't a guy ask a simple question and get a simple answer? Thanks again Rich. Oh, one more question: so what do the dirt bike hillclimbers and snowmobile grass draggers do to their bikes/sleds to make them run with open stingers?
They build in a longer stinger off the last convergent cone with a fairly small exit diameter. This will establish a specific pressure bleed and build heat backwards so the pipe runs at a specific temperature that matches the port timing and basic tuning of the engine.