There's a drain on the lower left. Just in front of the shifter.
According to the manual, the cooling system capacity is 2.5 liters (0.66 gal).
The manual instructions say to (1) remove the Drain Plug from the crankcase, (2) slacken the bleed screw on the water pump to help drainage, (3) remove the bottom hose from the water pump and allow the remaining coolant to drain, (4) close the bleed screw, and (5) fit the coolant drain plug to 13 Nm.
To refill (1) fit the bottom hose to the water pump and tighten the hose clip, (2) slowly add coolant through the top radiator filler until the system is full, (3) open the bleed screw on the water pump and allow any air to escape then close it, (4) start the engine and allow to idle for a short time, (5) stop the engine and top up the coolant, (6) fit the coolant pressure cap, and (7) check the expansion tank and top up if required.
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