2003 Polaris ATV Trail Boss 330 Factory Service Manual, Page 82Get this manual

ENGINE The following procedure must be used to torque the cylinder head properly: Install the cam chain over the crankshaft
Torque in cross pattern per procedure

Plated Link

Sprocket Mark

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives