Honda CRF230F 2017 Owner's Manual page 156

CRF230F
ENGINE
Bore and stroke
Compression ratio
Displacement
Spark plug
Spark plug gap
Idle speed
Valve clearance (cold)
CHASSIS AND SUSPENSION
Caster
Trail
Tyre size, front
Tyre size, rear
65.500 x 66.200 mm (2.5787 x 2.6063 in)
9.0 : 1
223 cm
Standard DPR8EA – 9 (NGK) or X24EPR – U9 (DENSO)
For cold climate DPR7EA – 9 (NGK) or
(Below 5°C, 41°F) X22EPR – U9 (DENSO)
0.8 – 0.9 mm (0.03 – 0.04 in)
1,400 ± 100 min
Intake 0.10 mm (0.004 in)
Exhaust 0.10 mm (0.004 in)
26°45'
111 mm (4.4 in)
80/100 – 21 51R NHS
100/100 – 18 59R NHS
(13.608 cu-in)
3
-1
(rpm)
77