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DATI TECNICI
MOTORE
Tipo ..........................monocilindrico a 4 tempi
Raffreddamento.................................a liquido
Alesaggio ............................................mm 98
Corsa .................................................. mm 84
Cilindrata ......................................cm
Rapporto di compressione.......................12:1
Avviamento .......................................a pedale
DISTRIBUZIONE
Tipo .................monoalbero a camme in testa
comandato da catena; 4 valvole
Diagramma distribuzione con gioco
valvole di 0,1 mm (a motore freddo):
Aspirazione
apertura..........................30° prima del P.M.S.
chiusura ...............................85° dopo il P.M.I.
Scarico
apertura .........................89° prima del P.M.I.
chiusura..............................40° dopo il P.M.S.
Gioco valvole (a motore freddo):
Aspirazione ......................................0,10 mm.
Scarico.............................................0,15 mm.
22
TECHNICAL DATA
ENGINE
Type..........................4-stroke, single cylinder
Cooling..............................................by liquid
Bore ....................................................3.85 in.
Stroke .................................................3.30 in.
633,61
Capacity ..................................... 38.65 cu. in.
3
Compression ratio ...................................12:1
Starting .........................................kick starter
TIMING SYSTEM
Type......................single overhead camshaft,
Valve timing with valve play 0.004 in.
with cold engine:
Inlet
opens .................................before T.D.C .30°
closes.................................... after B.D.C.85°
Exhaust
opens ...............................before B.D.C. 89°
closes ...................................after T.D.C .40°
Valve clearance (with cold engine):
Intake ................................................0.004 in.
Exhaust.............................................0.006 in.
MOTEUR
Type..............................un cylindre à 4 temps
Refroidissement .............................par liquide
Alésage................................................mm 98
Course .................................................mm 84
Cylindrée.......................................cm
Rapport volumetrique ..............................12:1
Démarrage ........................................a pédale
DISTRIBUTION
Type.............................arbre à cames en tête
chain driven, 4 valves
Diagramme de distribution avec jeu des
soupapes de 0,1 mm à moteur froid:
Admission
ouverture .............................avant P.M.H. 30°
fermeture............................. après P.M.B. 85°
Echappement
ouverture .............................avant P.M.B. 89°
fermeture ............................après P.M.H. 40°
Jeu des soupapes (à moteur froid):
Admission ........................................0,10 mm.
Echappement ..................................0,15 mm.
DONNEES TECHNIQUES
633,61
3
commandé par chaîne; 4 soupapes
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