What happened with the muffler pressure charged fuel system using the Cline regulator cannot happen with the YS' totally isolated pressurization and regulation system. The muffler is decoupled from the fuel regulation function entirely.

What is the point in using a high performance, pipe timed engine with a conventional muffler? Makes no sense. Without a resonant exhaust, chances are the YS will not perform as well as a standard timed .61 running a muffler. To make matters worse, its regulation system was designed to run with a resonant exhaust, so you could be back in the same situation that you were before when running unmatched exhaust and regulator systems.


Ed Cregger