Honda TRX250TE 2019 Owner's Manual page 215

Engine Specifications
displacement
bore & stroke
compression
ratio
spark plug
(standard)
spark plug
(cold climate)
spark plug
(high speed
riding)
spark plug gap
valve clearance
(cold)
idle speed
Power Transmission
primary reduction
final reduction
gear ratio
final drive
229 cm
68.5 × 62.2 mm (2.70 × 2.45 in)
9.2 : 1
DPR8EA-9 (NGK) or
X24EPR-U9 (DENSO)
DPR7EA-9 (NGK) or
X22EPR-U9 (DENSO)
DPR9EA-9 (NGK) or
X27EPR-U9 (DENSO)
0.8 – 0.9 mm (0.03 – 0.04 in)
intake:
exhaust:
1,400 ± 100 min
3.086
3.692
1st 3.231
2nd 2.167
3rd 1.667
4th 1.280
5th 1.042
reverse 5.550
shaft
Specifications
3 (14.0 cu-in)
0.13 mm (0.005 in)
0.13 mm (0.005 in)
–1 (rpm)
Technical Information 205