Yamaha YZF-R7 User Manual

5 - 6
COOL
RADIATOR AND THERMOSTAT
EB500010
CHECKING THE RADIATOR
1. Check:
• radiator fins
Obstruction → Clean.
Apply compressed air to the rear of the
radiator.
Damage → Repair or replace.
NOTE:
Straighten any flattened fins with a thin,
flat-head screwdriver.
2. Check:
• radiator hoses
Cracks/damage → Replace.
3. Measure:
• radiator cap opening pressure
Below the specified pressure →
Replace the radiator cap.
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a. Install the radiator cap tester 1 and
adapter 2 onto the radiator cap 3 .
b. Apply the specified pressure for ten
seconds and make sure that there is
no drop in pressure.
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Radiator cap opening pressure
95 ~ 125 kPa
(0.95 ~ 1.25 kg/cm
2
,
3.51 ~ 7.78 psi)
Radiator cap tester
90890-01325
Adapter
90890-01352
4. Check:
• radiator fan
Damage → Replace.
Malfunction → Check and repair.
Refer to “COOLING SYSTEM” in chap-
ter 8.

Yamaha YZF-R7 Specifications

General

Bore x Stroke	80.0mm x 68.6mm
Compression Ratio	11.5:1
Fuel Delivery	Fuel injection
Final Drive	Chain
Front Brakes	Dual 298mm hydraulic disc; ABS
Rear Brakes	245mm hydraulic disc; ABS
Front Tire	120/70ZR17
Rear Tire	180/55ZR17
Wheelbase	54.9 in
Seat Height	32.9 in
Fuel Capacity	3.4 gal
Wet Weight	414 lb
Ground Clearance	5.3 in
Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valves
Transmission	6-speed
Front Suspension	41mm KYB inverted fork, adjustable preload, rebound and compression damping; 5.1-in travel
Rear Suspension	Single shock, adjustable preload and rebound damping; 5.1-in travel