20DATI TECNICIMOTORETipo..........................monocilindrico a 4 tempiRaffreddamento ................................a liquidoAlesaggio mm ............................................ 98Corsa mm ................................................76,4Cilindrata cm3 ...................................... 576,28Rapporto di compressione.......................10:1Avviamento .......................................a pedaleDISTRIBUZIONETipo .................monoalbero a camme in testacomandato da catena; 4 valvoleDiagramma distribuzione con giocovalvole di 0,1 mm(a motore freddo):Aspirazione (TE-SMR 570)apertura..........................50° prima del P.M.S.chiusura ...............................77° dopo il P.M.I.Aspirazione (TC 570)apertura..........................30° prima del P.M.S.chiusura ...............................85° dopo il P.M.I.Scaricoapertura .........................89° prima del P.M.I.chiusura ..............................40° dopo il P.M.S.TECHNICAL DATAENGINEType ...........................4-stroke single cylinderCooling..............................................by liquidBore ....................................................3.85 in.Stroke .................................................3.01 in.Capacity ..................................... 35.15 cu. in.Compression ratio ...................................10:1Avviamento ...................................kick starterVALVE GEARType ......................single overhead camshaft,chain driven, 4 valvesValve timing with valve playwith cold engine:Inlet (TE, SMR 570)opens .................................before T.D.C .50°closes .................................... after B.D.C.77°Inlet (TC 570)opens .................................before T.D.C .30°closes .................................... after B.D.C.85°Exhaustopens ................................before B.D.C. 89°closes ....................................after T.D.C .40°DONNEES TECHNIQUESMOTEURType ..............................un cylindre à 4 tempsRefroidissement .............................par liquideAlésage................................................mm 98Course ..............................................mm 76,4Cylindrée.......................................cm 3 576,28Rapport volumetrique ..............................10:1Démarrage ........................................a pédaleDISTRIBUTIONType .............................arbre à cames en têtecommandé par chaîne; 4 soupapesDiagramme de distribution avec jeu dessoupapes de 0,1 mmà moteur froid:Admission (TE-SMR 570)ouverture .............................avant P.M.H. 50°fermeture............................. après P.M.B. 77°Admission (TC 570)ouverture .............................avant P.M.H. 30°fermeture............................. après P.M.B. 85°Echappementouverture .............................avant P.M.B. 89°fermeture .............................après P.M.H. 40°IMP. 1 / 2002 16-01-2002 8:07 Pagina 20