Technical Specification - Motor - SHERCO 2012 SE 250i-R Shop Manual

Technical specification - Motor

Type
Displacement
Bore/Stroke
Compression ratio
Fuel
Valve timing
Admission valve diameter
Exhaust admission valve
Thickness admission valve
Thickness exhaust valve
Crankshat bearing
Piston
Lubrification
Motor oil
Primary reduction ratio
Gear box :
1ère
2ème
3ème
4ème
5 ème
6 ème
Final transmission
Clutch
Ignition system / Batterie
Electronic injection
Liquid cooled single cylinder 4 strokes engine
249.4 CC
78/52mm
12.6 :1
Without lead 95 or 98
4 valves, DOHC driven by tooth type chain
29mm
25mm
0.15-0.2mm
0.2-0.25mm
2 roller bearing
Aluminium forge
Lubrication under pressure with 2 trochoidal pumps
1 L SAE 10W60
21 :70
6 speed
13 : 34
16 : 31
15 : 23
21 : 26
23 : 24
25 : 22
13 X48
Multi-disk in oil bath. Hydraulic command
Electric start/12V 6.5Ah
Magneti Marelli
300 CC
84/52.35mm
12:1
14 X 48
4/54