Motorcycle engine cooling and lube system Suzuki DL650 V-Strom (2004-2011)

Engine coolant
At the time of manufacture, the cooling system is filled with a 50:50 mixture of distilled water and ethylene glycol anti-freeze. This 50:50 mixture will provide the optimum corrosion protection and excellent heat protection, and will protect the...

Cooling circuit inspection
1. Thermostat; 2. Reserve tank; 3. Radiator; 4. No.1 cylinder head; 5. No.1 cylinder; 6. No.2 cylinder; 7. No.2 cylinder head; 8. Water pump Before removing the radiator and draining the engine coolant, inspect the cooling circuit for tightness....

Radiator — removal and installation
Removal Remove the cowling. ( 7-5 ) Drain the engine coolant. ( 2-18 ) Disconnect the right and left radiator hoses from the radiator. Disconnect the siphon hose (1) from the radiator. Disconnect the horn lead wire coupler (2). Remove the radiator...

Radiator cap inspection
Remove the radiator cap. ( 6-4 ) Fit the cap (1) to the radiator cap tester (2). Build up pressure slowly by operating the tester. Make sure that the pressure build-up stops at 95-125 kPa (0.95-1.25 kgf/cm², 13.5-17.8 psi) and that, with the tester...

Water hose inspection
Remove the cowling. ( 7-5 ) Any water hose found in a cracked condition or flattened or water leaked must be replaced. Any leakage from the connecting section should be corrected by proper tightening.

Cooling fans — removal and installation
Inspection Remove the cowling. ( 7-5 ) Disconnect the cooling fan motor and thermo-switch lead wire coupler (1). Test the cooling fan motor for load current with an ammeter connected as shown in the illustration. The voltmeter is for making sure...

Cooling fan thermo-switch — removal and installation
Removal Remove the cowling. ( 7-5 ) Drain the engine coolant. ( 2-18 ) Disconnect the cooling fan thermo-switch lead wire coupler (1). Remove the cooling fan thermo-switch (2). Inspection Check the thermo-switch closing or opening temperatures by...

ECT sensor — removal and installation
Removal Drain the engine coolant. ( 2-18 ) Disconnect the ECT sensor lead wire coupler. Place a rag under the ECT sensor and remove the ECT sensor (1). Inspection Check the ECT sensor by testing it at the bench as shown in the figure. Connect the...

Thermostat case assembly — removal and installation
Removal Drain the engine coolant. ( 2-18 ) Place a rag under the thermostat case. Remove the thermostat case cap (1). Remove the thermostat (2). Inspection Inspect the thermostat pellet for signs of cracking. Test the thermostat at the bench for...

Water pump — removal and installation
Removal and disassembly Drain the engine coolant. ( 2-18 ) Drain the engine oil. ( 2-13 ) Disconnect the water hoses (1), (2). Remove the water pump case and clutch cover. ( 3-27 ) Note: Before draining engine oil and engine coolant, inspect engine...

Oil cooler — removal and installation
Removal Drain the engine oil. ( 2-13 ) Disconnect the oil cooler hoses. Remove the oil cooler. Remove the oil cooler fin guard net (1). Remove the oil hoses (2). Inspection and cleaning Inspect the oil cooler and hose joints for oil leakage. If any...

Engine lubrication flow chart
Engine lubrication flow chart

Engine lubrication circuit
Engine lubrication circuit Front cylinder Rear cylinder