System And Method For Bypassing A Turbocharger Of A Two Stroke Engine

A method of operating an engine system having a two stroke engine, an exhaust manifold, a turbocharger coupled to the engine, said turbocharger comprising a turbine inlet coupled to the exhaust manifold through a tuned pipe, and a turbine outlet coupled to an exhaust pipe and a silencer coupled to the exhaust pipe, said method comprising:

• directing exhaust gases from through a bypass pipe having a first end coupled to the tuned pipe and a second end fluidically downstream of the turbine outlet;
• and
• controlling an exhaust bypass valve disposed in the bypass pipe to control an amount of exhaust gas communicated downstream of the turbine outlet through the bypass pipe.