Honda TRX250TM FOURTRAX Owner's Manual page 195

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
1st
2nd
gear ratio 3rd
4th
5th
reverse
final drive
Noise level (ISO 5131)
Vibration on seat
(EN 1032, ISO 5008)
Vibration on
handlegrip
(ISO 5349: 2001,
EN 709)
229 cm (14.0 cu-in)
68.5 × 62.2 mm (2.70
9.2 : 1
DPR8EA-9 (NGK)
or X24EPR-U9 (DENSO)
DPR7EA-9 (NGK)
or X22EPR-U9 (DENSO)
DPR9EA-9 (NGK)
or X27EPR-U9 (DENSO)
0.80 0.90 mm (0.031 0.035 in) −
intake: 0.13 mm (0.005 in)
exhaust: 0.13 mm (0.005 in)
1,400 ± 100 min (rpm)
3.087
3.692
3.231
2.167
1.667
1.280
1.042
5.550
shaft
75.4 dB (A)
Not exceed 0.5 m/s
2
7.7 m/s
Technical Information
Specifications
× 2.45 in)
−
2
185