Honda CB250 TWISTER Owner's Manual page 159

CB250 TWISTER
ENGINE
Recommended engine oil
Fuel
Bore × stroke
Compression ratio
Displacement
Spark plugs
Spark plug gap
Idle speed (non-adjustable)
Valve clearance (cold) IN
EX
Maximum horsepower
Maximum torque
Honda oil recommendation:
JASO T 903 standard: MA
SAE standard: 10W–30
API classification: SG or higher
Unleaded petrol
71.000 x 63.038 mm (2.7953 x 2.4818 in)
9.6:1
249.5 cm 3 (15.23 cu-in)
LMAR7H-9DS (NGK)
0.80 – 0.90 mm (0.031 – 0.035 in)
1,450 ± 100 rpm
0.10 mm (0.0039 in)
0.15 mm (0.006 in)
22.4 cv at 7,500 min (rpm)
-1
2.24 kgf.m at 6,000 min (rpm)
-1
73