Honda CBF600S 2006 Owner's Manual page 147

ENGINE
Bore and stroke
Compression ratio
Displacement
Spark plug
Standard
Spark plug gap
ldle speed
65.0 x 45.2 mm
11.6: 1
599.9 cm 3
CR9EH – 9 (NGK) o
U27FER9 (DENSO)
0,80 – 0,90 mm
1,300 ± 100 min -1 (rpm/min)
133