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Technical specification - Motor
Type Liquid cooled single cylinder 4 strokes engine
Displacement 249.4 CC 303.7 CC
Bore/Stroke 78/52mm 84/54.8mm
Compression ratio 12.6 :1 12.8:1
Fuel Without lead 95 or 98
Valve timing 4 valves, DOHC driven by tooth type chain
Admission valve diameter 29mm
Exhaust admission valve 25mm
Thickness admission valve 0.15-0.2mm
Thickness exhaust valve 0.2-0.25mm
Crankshat bearing 2 roller bearing
Piston Aluminium forge
Lubrification Lubrication under pressure with 2 trochoidal pumps
Motor oil 1 L SAE 10W60
Primary reduction ratio 21 :70
Gear box :
1ère
2ème
3ème
4ème
5 ème
6 ème
6 speed
14 : 33
17 : 30
19 : 28
21 : 26
23 : 24
25 : 22
Final transmission 13 X48 13 X 48
Clutch Multi-disk in oil bath. Hydraulic command
Ignition system / Batterie Electric start/12V 6.5Ah
Electronic injection Magneti Marelli
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