Cylinder Head Inspection; Cylinder Inspection - Suzuki RM85 Owner's Service Manual

• Remove the exhaust valve shaft stop retainer 2.
• Loosen the bolt 3. Draw out the shaft.
• Remove the spacers 4, springs 5 and valve shaft arm 6.
• Remove the exhaust valve assembly 7.

CYLINDER HEAD INSPECTION

• Remove carbon deposits from the cylinder head.
• Inspect the cylinder head for cracks around the spark plug
hole.
• Inspect for cylinder head distortion.
 Cylinder head distortion
Service Limit: 0.05 mm (0.002 in)

CYLINDER INSPECTION

• Remove carbon deposits from the exhaust port.
• Inspect the cylinder for cracks and replace the cylinder, if nec-
essary.
• Inspect the cylinder bore for wear, nicks and scratches.
NOTE:
Chrome-plated cylinder bore can not be modified such as boring
and honing.
CYLINDER, PISTON AND EXHAUST VALVE 6-5