2011 Kawasaki NINJA 650R Owners Manual - Page 104
2011 Kawasaki NINJA 650R Manual
Page 104 highlights
102 MAINTENANCE AND ADJUSTMENT in accordance with the Periodic Maintenance Chart. Also, inspect the air suction valves whenever stable idling cannot be obtained, engine power is greatly reduced, or there are abnormal engine noises. Air suction valve removal and inspection should be done only by a competent mechanic following the instructions in the Service Manual. Valve Clearance Valve and valve seat wear decreases valve clearance, upsetting valve timing. NOTICE If valve clearance is left unadjusted, wear will eventually cause the valves to remain partly open, which lowers performance, burns the valves and valve seats, and may cause serious engine damage. Valve clearance for each valve should be checked and adjusted in accordance with the Periodic Maintenance Chart. Inspection and adjustment should be done only by a competent mechanic following the instructions in the Service Manual.