Service information of cooling system (Honda VTX1800C)

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General

Caution! Removing the radiator cap while the engine is hot can allow the coolant to spray out, seriously scalding you. Always let the engine and radiator cool down before removing the radiator cap.

Notice: Using coolant with silicate corrosion inhibitors may cause premature wear of water pump seals or blockage of radiator passages. Using tap water may cause engine damage.

Add coolant at the reserve tank. Do not remove the radiator cap except to refill or drain the system.

Avoid spilling coolant on painted surfaces.

After servicing the system, check for leaks with a cooling system tester.

If any coolant gets in your eyes, rinse them with water and consult a physician immediately.

If any coolant is swallowed, induce vomiting, gargle and consult a physician immediately.

If any coolant gets on your skin or clothes, rinse thoroughly with plenty of water.

Refer to section 19 for fan motor switch and thermosensor information.

Specifications

ITEM		SPECIFICATIONS
Coolant capacity	Radiator and engine	2.60 liter (2.75 US qt, 2.29 Imp qt)
	Reserve tank	0.46 liter (0.49 US qt, 0.40 Imp qt)
Radiator cap relief pressure		108-137 kPa (1.1-1.4 kgf/cm², 16-20 psi)
Thermostat	Begin to open	80-84°C (176-183°F)
	Fully open	95°C (203°F)
	Valve lift	8 mm (0.3 in) minimum
Recommended antifreeze		Pro Honda HP coolant or equivalent high quality ethylene glycol antifreeze containing silicate-free corrosion inhibitors
Standard coolant concentration		1:1 mixture with soft water

Information copied from the resource Motoinstruction.ru

Torque values

Water pump assembly bolt	13 N·m (1.3 kgf·m, 9 lbf·ft)
Radiator cover bolt	10 N·m (1.0 kgf·m, 7 lbf·ft)
Radiator cover side bolt	3.4 N·m (0.35 kgf·m, 2.5 lbf·ft)

See this article in russian language

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Article about repair motorcycles «Honda VTX series VTX 1800 C» (2001-2008): «Service information of cooling system»: https://motoinstruction.ru/en/Honda/VTX/1800C/engine/cooling/112333 <a href="https://motoinstruction.ru/en/Honda/VTX/1800C/engine/cooling/112333">Service information of cooling system</a> - article about repair motorcycles «Honda VTX series VTX 1800 C» (2001-2008) from section «Cooling system». [url=https://motoinstruction.ru/en/Honda/VTX/1800C/engine/cooling/112333]Service information of cooling system[/url] - article about repair motorcycles «Honda VTX series VTX 1800 C» (2001-2008) from section «Cooling system».