Removing
Remove the air filter.
Remove the spool device and disconnect the crankcase ventilation hose.
Turn away bolts and remove from the engine a cover of a head of the block of cylinders.
If it is necessary to remove the gasket from the cover, knock it out with light blows from a hammer with a soft spacer or using a tool with a thin blade (spatula or screwdriver), by inserting it into the corner of the gasket.
Clean the cylinder head cover from the remnants of the gasket material on the mating surfaces. Never remove them with a hard scraper or scraper as aluminum alloy is very soft.
Installation
Install a new gasket and cover. Screw in the mounting bolts and tighten them to the required torque.
Install the air filter and elements of the crankcase ventilation system.