Model
Engine:
Type
Cylinder arrangement
Displacement
Bore × stroke
Compression ratio
Starting system
Lubrication system
Engine oil:
Type
Recommended engine oil classification
Air-cooled 4-stroke, SOHC
Single cylinder, forward-inclined
3
229.6 cm
71 × 58 mm
8.7:1
Electric starter and recoil starter
Wet sump
-20˚
-10˚
0˚
5W/30
10W/30
API Service SE, SF, SG type or higher
10-2
YFM250X
50˚C
10˚
20˚
30˚
40˚
10W/40
15W/40
20W/40
20W/50
10