Motorcycle engine cooling system BMW F650GS (2000-2007)

Technical data of cooling system
Cooling system Cooling system capacity Total capacityl (Imp.pints/ US quarts)1.3 (2.29/1.37) Coolant circuitl (Imp.pints/ US quarts)1.20 (2.113/1.268) Coolant expansion tankl (Imp.pints/ US quarts)0.10 (0.176/0.106) CoolantUse only nitrite-free...

Cooling system design of motorcycle
Coolant circuit Thermostat, components 1. Coolant-temperature sensor; 2. Thermostat housing; 3. Thermostat; 4. Cover; 5. O-ring; 6. Spring clip

Removing coolant pump
Remove seat. Remove left cover. See Group 46. Drain engine oil. See Group 00. Place motorcycle on side stand. Position a drip tray beneath the engine. Remove drain plug (1) from water pump. Hold a funnel below the drain and open the radiator cap....

Installing coolant pump
Note: Check shaft for score-marks at sealing ring tracks. Always replace shaft and sealing rings as a set. Install gearwheel, shaft, pin and washer in engine cover. Note: Check sealing ring for water pump cover and renew if necessary. Lower the...

Adding coolant to cooling system
Place motorcycle on its centre stand. Slacken bleed screw (1) in cylinder head. Connect a hose to the bleed screw. Fill the radiator until coolant escapes at the bleed screw; repeatedly squeeze the coolant hoses to expel the air. Tighten bleed screw...

Removing and installing coolant-temperature sensor
Drain coolant. See Group 00. Place motorcycle on its centre stand. Remove plug from coolant temperature sensor (1). Remove coolant-temperature sensor (2). Installation is the reverse of the removal procedure. Tightening torque: Temperature sensor:...

Checking cooling system for leaks
Remove left cover. See Group 46. Open the filler cap on the radiator. Connect pump, BMW # 17 0 500, with adapter and neck, BMW # 17 5 520, to filler neck. Pressure-test the system; the pressure must remain unchanged for at least 5 minutes. Setting:...

Removing and installing coolant hoses
Place motorcycle on its centre stand. Remove left cover. Drain coolant. See Group 00. Remove the right-hand coolant hose. Remove the left-hand coolant hose between radiator and frame. Replacing coolant hose (radiator/water pump) Use pliers, BMW #...

Removing and installing fan
Remove right cover. Unclip the MoDiTeC plug from its holder. Disconnect plug for fan. Disengage the clips at top and bottom and remove the fan. Installation is the reverse of the removal procedure: pay particular attention to the following. Slide...

Removing and installing radiator
Place motorcycle on its centre stand. Remove left, right and centre covers. Drain coolant. See Group 00. Disconnect the expansion tank from the radiator, pull it to one side and let it dangle from the hose. Remove the fan. Disconnect the coolant...

Removing and installing thermostat
Remove left cover. Drain coolant. See Group 00. Do not close the radiator cap. Remove spring clip (2). Use a screwdriver to pry cover (3) out of the groove in the housing (arrow). Remove thermostat insert (5) with thermostat (4) from the housing....