The Rotax Variable Exhaust Valve

Rotax has issued a document about the Rotax Exhaust Valve installation in the 125 MAX engine. "Rotax have issued this document to help customers understand the exhaust valve and how it works" IKD informed KartSportNews.

rotax max variable exhaust valve
Above: One of the pages from the 23-page installation and information document.

A PDF of the document can be downloaded from the Australian Rotax site HERE.

Rotax technical downloads page HERE.