WOSSNER offers you a high-performance 2-stroke STD piston kit designed for optimum precision fit and maximum combustion efficiency. Manufactured with high-quality materials and advanced manufacturing technology, it reduces internal friction, limits compression losses and improves engine stability throughout the rev range. Its design also enables better thermal management to reduce the risk of overheating and premature wear. Ideal for OE-compliant retrofitting, it helps extend the life of the top drive while maintaining consistent, reliable performance.

Fits on :

YAMAHA YZ 85 LW 2017

YAMAHA YZ 85 LW 2016

YAMAHA YZ 85 LW 2015

YAMAHA YZ 85 LW 2014

YAMAHA YZ 85 LW 2013

YAMAHA YZ 85 LW 2012

YAMAHA YZ 85 LW 2011

YAMAHA YZ 85 LW 2010

YAMAHA YZ 85 LW 2009

YAMAHA YZ 85 LW 2008

YAMAHA YZ 85 LW 2007

YAMAHA YZ 85 LW 2006

YAMAHA YZ 85 LW 2005

YAMAHA YZ 85 LW 2004

YAMAHA YZ 85 LW 2003

YAMAHA YZ 85 LW 2002

YAMAHA YZ 85 SW 2018

YAMAHA YZ 85 SW 2017

YAMAHA YZ 85 SW 2016

YAMAHA YZ 85 SW 2015

YAMAHA YZ 85 SW 2014

YAMAHA YZ 85 SW 2013

YAMAHA YZ 85 SW 2012

YAMAHA YZ 85 SW 2011

YAMAHA YZ 85 SW 2010

YAMAHA YZ 85 SW 2009

YAMAHA YZ 85 SW 2008

YAMAHA YZ 85 SW 2007

YAMAHA YZ 85 SW 2006

YAMAHA YZ 85 SW 2005

YAMAHA YZ 85 SW 2004

YAMAHA YZ 85 SW 2003

YAMAHA YZ 85 SW 2002