SYSTEM FLOW PATTERN
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RADIATORS
WATER PUMP |
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TANK |
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.
Using coolant with silicate 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.
• All cooling system services can be done with the engine in the frame.
• Avoid spilling coolant on painted surfaces.
• After servicing the system, check for leaks with a cooling system tester.
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ITEM |
SPECIFICATIONS |
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Coolant capacity |
At change |
1.21 liter (1.28 US qt, 1.06 Imp qt) |
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At disassembly |
1.45 liter (1.53 US qt, 1.28 Imp qt) |
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Radiator cap relief pressure |
108 - 137 kPa (1.1 - 1.4 kgf/cm}, 16 - 20 psi) |
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Recommended antifreeze |
Pro Honda HP Coolant or an equivalent high quality ethylene glycol antifreeze containing silicate-free corrosion inhibitors |
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Standard coolant concentration |
1 : 1 mixture with distilled water |
Water pump impeller 12 N m (1.2 kgf-m, 9 lbf-ft)
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Remover head, 12 mm 07936-1660110 not available in U. S.A. |
Bearing remover, 12 mm 07936-166010A (U. S.A. only) |
Remover shaft 07936-1660120 not available in U. S.A. |
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Remover handle 07936-3710100 (U. S.A. only) |
Driver 07749-0010000 |
Attachment, 28 x 30 mm 07946-1870100 |
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Pilot, 12 mm 07746-0040200 |
Engine temperature too high
• Faulty radiator cap
• Insufficient coolant
• Passage blocked in radiator, hoses or water jacket
• Radiator air passage clogged with dirt
• Air in system
• Faulty water pump
Coolant leak
• Faulty water pump oil seal and mechanical seal
• Deteriorated water pump oil seal and mechanical seal
• Damaged or deteriorated O-ring
• Loose hose connection or clamp
• Damaged or deteriorated hose
• Faulty radiator cap
• Damaged radiator
• Passage blocked in radiator siphon hose
