Yamaha YFM660 01 User Manual
Have a look at the manual Yamaha YFM660 01 User Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 255 Yamaha manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
6 - 2 COOLRADIATOR Order Job name/Part name Q’ty Remarks 11 Coolant reservoir 1 12 Coolant reservoir cap 1 For installation, reverse the removal pro- cedure.
6 - 3 COOLRADIATOR CHECKING THE RADIATOR 1.Check: Radiator fins Obstruction → Clean. Apply compressed air to the rear of the radia- tor. Damage → Repair or replace. OTE: Straighten any flattened fins with a thin, flat- head screwdriver. 2.Check: Radiator hoses Cracks/damage → Replace. 3.Measure: Radiator cap opening pressure Below the specified pressure → Replace the radiator cap. *********************************************** Measurement steps: Install the radiator cap tester 1 and adapter 2 onto the radiator cap 3 . Apply the specified pressure for ten seconds and make sure that there is no drop in pres- sure. *********************************************** 4.Check: Radiator fan Damage → Replace. Malfunction → Check and repair. Refer to “COOLING SYSTEM” in CHAPTER 9. Radiator cap opening pressure: 95 ~ 125 kPa (0.95 ~ 1.25 kg/cm 2, 13.8 ~ 18.1 psi) Radiator cap tester: P/N. YU-24460-01, 90890-01325 Adapter: P/N. YU-33984, 90890-01352
6 - 4 COOLRADIATOR INSTALLING THE RADIATOR 1.Fill: Cooling system (with the specified amount of the recom- mended coolant) Refer to “CHANGING THE COOLANT” in CHAPTER 3. 2.Check: Cooling system Leaks → Repair or replace any faulty part.
6 - 5 COOLTHERMOSTAT THERMOSTAT Order Job name/Part name Q’ty Remarks Removing the thermostat Remove the parts in the order below. Front panel and front fender Refer to “SEAT, FENDERS AND FUEL TANK” in CHAPTER 3. Coolant Drain. Radiator Refer to “RADIATOR”. 1 Radiator inlet hose 1 2 Front fender bracket 1 3 Thermostat inlet hose 1 4 Water jacket outlet pipe 1 5 O-ring 1 6 Thermostat assembly 1 7 Thermo switch 2 1 For installation, reverse the removal pro- cedure.
6 - 6 COOLTHERMOSTAT Order Job name/Part name Q’ty Remarks Disassembling the thermostat Remove the parts in the order listed. 1 Thermostat cover 1 Refer to “ASSEMBLING THE THERMO- STAT”. 2 O-ring 1 3 Thermostat 1 4 Thermostat housing 1 For assembly, reverse the disassembly procedure.
6 - 7 COOLTHERMOSTAT CHECKING THE THERMOSTAT 1.Check: Thermostat 1 Does not open at 69 ~ 73 °C (156.2 ~ 163.4 °F) → Replace. *********************************************** Checking steps: Suspend the thermostat in a container filled with water. Slowly heat the water. Place a thermometer in the water. While stirring the water, observe the thermo- stat and thermometer’s indicated tempera- ture. *********************************************** 1Thermostat 2Thermometer 3Water 4Container ÈFully closed ÉFully open OTE: If the accuracy of the thermostat is in doubt, replace it. A faulty thermostat could cause seri- ous overheating or overcooling. 2.Check: Thermostat housing cover Thermostat housing Cracks/damage → Replace. ASSEMBLING THE THERMOSTAT 1.Install: Thermostat 1 Thermostat housing cover OTE: Install the thermostat with its breather hole a toward the projection b . 2.Fill: Cooling system (with the specified amount of the recom- mended coolant) Refer to “CHANGING THE COOLANT” in CHAPTER 3. 3.Check: Cooling system Leak → Repair or replace any faulty part.
6 - 8 COOLWATER PUMP WATER PUMP Order Job name/Part name Q’ty Remarks Removing the water pump Remove the parts in the order below. Coolant Drain. 1 Radiator outlet hose 1 Disconnect. 2 Water pump outlet hose 1 3 Water pump assembly 1 4 O-ring 1 5 Water jacket inlet housing 1 6 O-ring 1 For installation, reverse the removal pro- cedure.
6 - 9 COOLWATER PUMP Order Job name/Part name Q’ty Remarks Disassembling the water pump Remove the parts in the order below. 1 Water pump housing cover 1 2 O-ring 1 3 Circlip 1 4 Impeller shaft gear 1 5 Pin 1 6 Circlip 1 7 Impeller 1 Refer to “DISASSEMBLING/ASSEM- BLING THE THERMOSTAT”. 8 Impeller shaft 1 9 Rubber damper holder 1
6 - 10 COOLWATER PUMP Order Job name/Part name Q’ty Remarks 0 Rubber damper 1 Refer to “DISASSEMBLING/ASSEM- BLING THE THERMOSTAT”. A Water pump seal 1 B Oil seal 1 C Bearing 1 D Water pump housing 1 For assembly, reverse the disassembly procedure.
6 - 11 COOLWATER PUMP DISASSEMBLING THE WATER PUMP 1.Remove: Impeller shaft 1 OTE: Tap out the impeller shaft from the impeller. 2.Remove: Rubber damper holder 1 Rubber damper 2 (from the impeller, with a thin, flathead screwdriver) OTE: Do not scratch the impeller. 3.Remove: Water pump seal 1 OTE: Tap out the water pump seal from the inside of the water pump housing. 2Water pump housing 4.Remove: Oil seal 1 Bearing 2 OTE: Tap out the bearing and oil seal from the out- side of the water pump housing. 3Water pump housing CHECKING THE WATER PUMP 1.Check: Water pump housing cover 1 Water pump housing 2 Impeller 3 Impeller shaft 4 Rubber damper 5 Rubber damper holder 6 Cracks/damage/wear → Replace.