1985-1986 Honda ATC250R Shop Manual, Page 75Get this manual

CYLINDER HEADCYLINDERPISTON
Check the cylinder head for warpage in diagonal directions with straight edge and feeler gauge
SERVICE LIMIT: 0.05 mm (0.002 in)

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