Honda CRF230F 2019 Manual page 157

Specifications
Engine Specifications
Valve clearance
(cold)
Spark plug
(standard)
Spark plug
(cold climate; below
5°C, 41°F)
Spark plug gap
Idle speed
150
Technical Information
Intake: 0.004 in
(0.10 mm)
Exhaust: 0.004 in
(0.10 mm)
DPR8EA-9 (NGK) or
X24EPR-U9 (DENSO)
DPR7EA-9 (NGK) or
X22EPR-U9 (DENSO)
0.03–0.04 in
(0.8–0.9 mm)
1,400±100 rpm
Power Transmission
Primary reduction
Gear ratio, 1st
2nd
3rd
4th
5th
6th
Final reduction
Final drive
3.090
2.769
1.941
1.450
1.148
0.960
0.812
3.846
chain