Honda XR250 Tornado Owner's Manual page 159

78
ENGINE
Item
Type
Cylinder arrangement
Bore and stroke
Displacement
Compression ratio
Maximum horsepower
Maximum torque
Spark plug
For extended high speed riding
Spark plug gap
Idle speed
Valve clearance (cold)
CHASSIS AND SUSPENSION
Item
Caster/trail
Tyre size, front
Tyre size, rear
Type tyre
DOHC, single cylinder, 4 stroke, four-valve,
air cooled with oil cooler
Inclined 15° regarding the vertical position
73.0 x 59.5 mm (2.90 x 2.34 in)
249 cm
9.3 : 1
22.98 HP at 7,500 min
2.42 kgf.m at 6,000 min
Standard NGK CR8EH-9S
NGK CR9EH-9S
0.8 – 0.9 mm (0.031 – 0.035 in)
1,400 ± 100 min
IN 0.12 mm (0.005 in)
EX 0.15 mm (0.006 in)
25°58'/98 mm (3.9 in) (with high seat)
26°9'/100 mm (3.9 in) (with low seat)
(size) 90/90–21M/C 54S
(brand/model) METZELER ENDURO 3
(size) 120/80–18M/C 62S
(brand/model) METZELER ENDURO 3
Bias-ply, tube
3 (15.2 cu-in)
–1 (rpm)
–1 (rpm)
–1 (rpm)
Owner´s Manual