Motorcycle engine cooling system Harley Street 750 (2014-2021)

Fastener torque values
Fastener torque values in this chapter The table below lists torque values for all fasteners presented in this chapter. FASTENER TORQUE VALUE NOTES Coolant drain screw 10.0-12.0 Nm 89-106 in·lbs Coolant of cooling system , Drain and Fill Cooling...

Specifications of cooling system
General Table 7-1. Capacities ITEM LITERS QUARTS Engine coolant (without overflow tank) 1.3 1.4 Engine coolant (with overflow tank) 1.6 1.7 Table 7-2. Coolant Pressure ITEM KPA PSI Cap lower limit 124 18 Rated cap pressure 138 20 Cap upper limit 152...

Coolant flow
Operation Engine Below Operating Temperature See Figure 7-1. When engine is below operating temperature the thermostat [in the thermostat housing (3)], is closed. Coolant in the engine coolant cavities (6) warms up as the engine operates. Coolant...

Diagnose and test
Troubleshooting Warning: The Troubleshooting section of this manual is a guide to diagnose problems. Read the appropriate sections of this manual before performing any work. Improper repairand/or maintenance could result in death or serious injury....

Coolant of cooling system
Prepare 1. Remove left side cover. See Side covers . 2. Lift rear of fuel tank. See Lift rear of fuel tank . Check coolant level Caution: At operating temperature, radiators and oil coolers contain hot fluids. Contact with a radiator or oil cooler...

Thermostat housing
Prepare 1. Drain coolant to below thermostat housing level. See Coolant of cooling system . 2. Lift rear of fuel tank. See Lift rear of fuel tank . 3. Remove engine coolant temperature sensor. See Engine coolant temperature (ECT) sensor . Remove...

Coolant pump
Prepare 1. Drain cooling system. See Coolant of cooling system . 2. Remove left foot control bracket. See Rider foot controls . Remove Note: Pry overlap ofclamps (1, 2) to remove. If clamps must be cut, use a sharp high-quality wire cutter. 1. See...

Coolant overflow tank
Prepare 1. Remove left side cover. See Side covers . 2. Drain coolant overflow tank. See Coolant of cooling system . Remove 1. See Figure 7-11. Remove overflow tank. a. Detach vent hose (1). b. Detach overflow hose (4). c. Remove screws (2). d....

Coolant hoses
Prepare 1. Remove left side cover. See Side covers . 2. Drain coolant system. Coolant of cooling system . 3. Lift rear of fuel tank. See Lift rear of fuel tank . Remove Notes: Crimp-type clamps are not reusable. Pry overlap of crimp type clamps to...

Engine coolant temperature (ECT) sensor
Prepare 1. Remove main fuse. See Power disconnect . 2. Lift rear of fuel tank. See Lift rear of fuel tank . 3. Drain coolant. See Coolant of cooling system . Remove 1. See Figure 7-13. Disconnect ECT connector (1). 2. Remove sensor (2). Install...

Removing and installing radiator
Prepare 1. Lift rear of fuel tank. See Lift rear of fuel tank . 2. Drain coolant. See Coolant of cooling system . Remove 1. See Figure 7-14. Remove shroud. a. Remove screws (8) and washers (9). b. Remove shroud (7). Note: Pry overlap ofclamps (2,...