
Top End Gasket Kit Moose Offroad Hard - Parts (manufacturer part no. 810666MSE): a complete set designed for the refurbishment of the top end of offroad machines. This kit includes gaskets, O-rings, and seals necessary to replace worn components during an engine opening, without attempting to alter the internal geometry otherwise.
Designed for motocross riders who are refurbishing cylinder heads and pistons, this kit contains valve stem seals, head gaskets, base gaskets, exhaust gaskets, tensioner gaskets, and various other seals. It also includes a "high compression" option: a gasket base of .012" thickness to slightly increase the compression ratio without resorting to expensive pistons or machining. All gaskets are made in the USA. The moulded rubber valve cover gasket is not included.
An economical solution compared to OEM parts, this kit is aimed at technicians and DIY enthusiasts in motocross seeking controlled sealing and precise fitting during the restoration of the top end.
Common compatibilities: YAMAHA YZ 250 (1SS 2017, 1P8 2015, 5XF 2004).