[header] How to replace a piston ring on a dirtbike [title] Drain your antifreeze and remove the gas tank from the dirt bike. [step] Remove the seat also. [title] Unscrew the muffler and take off the springs with a tusk or whatever you may prefer. 
[title] Begin moving the wires that are in the way of the engine. [step] Remove the spark plug and the top engine block on the dirt bike.