Brammo 2006 Ariel Atom 2, Owner'S Manual, Page: 46 / 79

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ADDING & CHANGING ENGINE COOLANT
The engine coolant tank is located above the engine in the center of the engine compartment, under the air
intake cover.
WARNING: the system is pressurized at up to 15 PSI, and can cause severe burns! Only open the cap
when the engine is at ambient temperature and there is no pressure in the cooling hoses.
At the factory we use a vacuum device to pull the coolant through the system, then a coolant pressurizing
system to apply 15 PSI to it. By the time this is done, there are virtually no air bubbles left in the system. You
will have to bleed the system very carefully using the following procedures:
1. Refer to the Fluid Levels & Types section on pages 35 & 36 for your engine’s specifications. Dilute coolant
50:50 coolant to water if the product comes un-diluted.
2. Carefully remove the 1/8 in. bronze pipe plug located at the top of the radiator. NOTE: if coolant rushes
out of this fitting, the engine may not need bleeding.
3. Fill the coolant exchange tank over the engine until it will not hold any more coolant.
4. Start the engine and let it idle until the temperature at the thermostat housing reaches about 150 degrees.
5. Check the radiator by touch to ensure it is warm. If it is not warm, turn engine off and let set. Restart.
6. Shut down the engine.
NOTE: The coolant temperature indicator on the SPA dash is not reliable until the system is completely bled,
so do not depend on it for accurate readings yet.