Cylinder And Piston - Service Information; Cylinder And Piston Troubleshooting - Honda XLR200R Service Manual

8. CYLINDER AND PISTON
SERVICE INFORMATION .................................. 8 - 1 CYLINDER, PISTON REMOVAL & INSTALLATION .. 8 - 2
TROUBLESHOOTING ........................................ 8 - 1
SERVICE INFORMATION
Cylinder and piston maintenance must be done after removing the engine from the frame.
Take care not to damage the cylinder wall and piston.
When removing the cylinder, make sure that the surfaces are not scratched by the screwdriver, and that the fins are not hit
too hard as to cause damage.
Parts should be cleaned, then dried adequately using compressed air, prior to inspection.
TROUBLESHOOTING
Compression Pressure is Too Low
Broken or worn out piston ring
• Worn out piston or cylinder
Compre,ssion Pressure is Too High
Excessive carbon build-up on piston crown or combustion
chamber wall
Piston Knock
Worn out cylinder, piston, piston ring
Worn out piston pin hole or piston pin
Worn out connecting rod small end
Abnormal Noise
• Damaged cylinder, piston
8-1