Honda NSS250A Owner's Manual page 194

Capacities
passenger capacity
maximum weight
capacity
Engine Specifications
displacement
bore & stroke
compression ratio
spark plug (standard)
spark plug
(cold climate)
spark plug (high
speed riding)
valve clearance
(cold)
spark plug gap
idle speed
operator, one passenger
366 lbs (166 kg)
rider, passenger, all cargo and accessories
15.2 cu-in (249 cm )
2.86 × 2.36 in (72.7
10.5 : 1
DPR7EA-9 (NGK)
DPR6EA-9 (NGK)
DPR8EA-9 (NGK)
intake: 0.005 in (0.12 mm)
exhaust: 0.005 in (0.12 mm)
0.031 0.035 in (0.80 0.90 mm) −
1,500 ± 100 rpm
× 60.0 mm)
X22EPR-U9 (DENSO)
or
X20EPR-U9 (DENSO)
or
X24EPR-U9 (DENSO)
or
−
Technical Information
Specifications
185