Yamaha YFM660 01 User Manual
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2 - 19 SPEC Starter relay Model/manufacturer MS5F-721/JIDECO ---- Amperage rating 180 A ---- Coil winding resistance 4.18 ~ 4.62 Ω at 20 °C (68 °F) ---- Thermostat switch: Thermostat switch 1 Model/manufacturer 5GH/NIPPON THERMOSTAT ---- Thermostat switch 2 Model/manufacturer 5LP/NIPPON THERMOSTAT ---- Circuit breaker: Type Fuse ---- Amperage for individual circuit Fuse 20 A × 1 ---- Reserve 20 A × 1 ---- Item Standard Limit MAINTENANCE SPECIFICATIONS
2 - 20 SPEC EB201000 HOW TO USE THE CONVERSION TABLE All specification data in this manual are listed in SI and METRIC UNITS. Use this table to convert METRIC unit data to IMPERIAL unit data. Ex. CONVERSION TABLE EB202001 GENERAL TORQUE SPECIFICATIONS This chart specifies torque for standard fasten- ers with standard I.S.O. pitch threads. Torque specifications for special components or assemblies are provided for each chapter of this manual. To avoid warpage, tighten multi- fastener assemblies in a crisscross fashion, in progressive stages, until the specified torque is reached. Unless otherwise specified, torque specifications require clean, dry threads. Com- ponents should be at room temperature. A: Distance between flats B: Outside thread diameter METRIC MULTIPLIER IMPERIAL ** mm× 0.03937 = ** in 2 mm× 0.03937 = 0.08 in METRIC TO IMPERIAL Metric unit Multiplier Imperial unit Torquem·kg m·kg cm·kg cm·kg7.233 86.794 0.0723 0.8679ft·lb in·lb ft·lb in·lb Weightkg g2.205 0.03527lb oz Speed km/hr 0.6214 mph Distancekm m m cm mm0.6214 3.281 1.094 0.3937 0.03937mi ft yd in in Volume/ Capacitycc (cm 3) cc (cm3) lt (liter) lt (liter)0.03527 0.06102 0.8799 0.2199oz (IMP liq.) cu·in qt (IMP liq.) gal (IMP liq.) Misc.kg/mm kg/cm 2 Centigrade (°C)55.997 14.2234 9/5+32 lb/in psi (lb/in2) Fahrenheit (°F) A (nut)B (bolt)General torque specifications Nm mkg ftlb 10 mm 6 mm 6 0.6 4.3 12 mm 8 mm 15 1.5 11 14 mm 10 mm 30 3.0 22 17 mm 12 mm 55 5.5 40 19 mm 14 mm 85 8.5 61 22 mm 16 mm 130 13.0 94 HOW TO USE THE CONVERSION TABLE/ GENERAL TORQUE SPECIFICATIONS
2 - 21 SPEC LUBRICATION POINTS AND LUBRICANT TYPES ENGINE Lubrication points Lubricant type Oil seal lips (all) LS O-ring (all)LS Bearings (all)E Crank pinE Connecting rod (bearing)E Camshaft sprocketM CrankshaftE Piston surface/piston ringsE Piston pinE Primary drive gear/primary driven gearE Valve stem/valve stem endM Rocker arm shaftE Rocker armM Camshaft lobe/journalM Oil pump shaft, rotor, housingE Oil filter O-ringE Starter idle gear/shaftE Transmission gear (wheel/pinion)M Axle (main/drive)M Shift fork/guide barE Shift drum/shift shaft/shift cam stopper ballE Shift lever/shift guideLS Crankcase mating surfacesSealant (Quick Gasket) Yamaha bond No.1215 Cylinder head and cylinder head cover mating surfacesSealant (Quick Gasket ) Yamaha bond No.1215 AC magneto lead grommet (AC magneto cover)Sealant (Quick Gasket ) Yamaha bond No.1215 LUBRICATION POINTS AND LUBRICANT TYPES
2 - 22 SPEC COOLANT FLOW DIAGRAMS 1Radiator 2Radiator fan 3Radiator outlet hose 4Water pump inlet hose 5Water pump 6Water jacket outlet pipe 7Thermostat inlet hose 8Thermostat9Radiator inlet hose 0Thermo switch 2 AThermo switch 1 COOLANT FLOW DIAGRAMS
2 - 23 SPEC OIL FLOW DIAGRAMS 1Oil tank 2Oil pipe 2 3Oil pipe 1 OIL FLOW DIAGRAMS
2 - 24 SPEC 1Oil delivery pipe 2 2Oil delivery pipe 1 3Oil filter 4Crankshaft 5Oil pump OIL FLOW DIAGRAMS
2 - 25 SPEC 1Oil pipe 2 2Drive axle 3Main axle 4Engine oil drain bolt (engine) 5Oil pipe 1 6Oil strainer 7Shift drum OIL FLOW DIAGRAMS
2 - 26 SPEC 1Oil delivery pipe 2 2Oil filter cartridge 3Oil pump rotor 1 4Oil pump rotor 2 5Oil pipe 1 6Main axle OIL FLOW DIAGRAMS
2 - 27 SPEC CABLE ROUTING 1Parking brake cable 2Starter cable 3Clutch cable 4Throttle cable 5Front brake hose 6Front brake switch 7Park switchÈFasten the handlebar switch lead, park switch lead and clutch switch lead to the handlebar with the plastic band. ÉFasten the front brake switch lead to the handle- bar with the plastic band. CABLE ROUTING
2 - 28 SPEC 1Front brake hose 2Throttle cable 3Main switch lead 4Indicator light lead 5Clutch cable 6Parking brake cable 7Starter cable 8Coolant reservoir hose 9Wire harness 0Ignition coil lead AHeadlight lead coupler (left)BBrake pipe CHeadlight lead coupler (right) DRadiator fan breather hose EHeadlight lead (right) ÈPass the throttle cable through the cable guide. ÉPass the clutch cable, parking brake cable and starter cable through the cable guide. ÊFasten the left and right headlight lead, radiator fan lead and thermo switch 1 lead to the frame with the plastic band. CABLE ROUTING