Remove left cover (See Group 46).
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.
Drain off all the coolant.
Disconnect the coolant hose (arrow) at the frame on the left and drain the radiator.
Remove fastener (1), lift out the expansion tank and drain off all coolant.
Caution! Dispose of old coolant in an environmentally compatible manner.
Note: Do not install and refill the coolant expansion tank if valve clearance still has to be checked.
Install the expansion tank.
Install the drain plug with a new sealing ring and tighten.
Place motorcycle on its centre stand.
Slacken bleed screw (2) 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 (2).
Top up coolant until the level reaches the top of the filler neck (arrow).
Top up expansion tank to the MAX mark.
Capacity
- Cooling system — 1.2 l (2.11 Imp.pints/1.27 US quarts)
- In expansion tank — +0.1 l (1.17 Imp.pints/0.11 US quarts)
Antifreeze
Use only nitrite-free long-term antifreeze and corrosion inhibitor.
Concentration:
- Antifreeze — 50%
- Water — 50%
Run the engine for a short time, then switch it off.
Check coolant level and top up if necessary.
Installation is the reverse of the removal procedure: pay particular attention to the following.
Note: Do not reinstall the cover at this stage, if other maintenance work has to be performed.
Tightening torques:
- Drain plug — 10 Nm
- Expansion tank to radiator — 9 Nm
- Bleed screw — 12 Nm