Checking the radiator (Yamaha YZF-R1 Y(C))

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1. Check:

• Radiator fins

Obstruction → Clean.

Apply compressed air to the rear of the radiator.

Damage → Repair or replace.

Straighten any flattened fins with a thin, flathead screwdriver.



2. Check:

• Radiator hoses
• Radiator pipes

Cracks/damage → Replace.

3. Measure:

• Radiator cap opening pressure

Below the specified pressure → Replace the radiator cap.

Radiator cap opening pressure 107.9-137.3 kPa (1.08-1.37 kgf/cm², 15.6-19.9 psi).

a. Install the radiator cap tester "1" and radiator cap tester adapter "2" to the radiator cap "3".

Radiator cap tester 90890-01325. Radiator pressure tester YU-24460-01. Radiator cap tester adapter 90890-01352. Radiator pressure tester adapter YU-33984.



b. Apply the specified pressure for ten seconds and make sure there is no drop in pressure.

4. Check:

• Radiator fan

Damage → Replace.

Malfunction → Check and repair.

Refer to "Cooling system".

See this article in russian language

Article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014): «Checking the radiator»: https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/engine/cooling/115527 <a href="https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/engine/cooling/115527">Checking the radiator</a> - article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014) from section «Cooling system». [url=https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/engine/cooling/115527]Checking the radiator[/url] - article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014) from section «Cooling system».