Yamaha YZF-R7 User Manual

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ELEC
COOLING SYSTEM
CHECKING THE THERMO SWITCH
• Remove the thermo switch from the radia-
tor.
• Connect the pocket tester (Ω × 1) to the
thermo switch 1 as shown.
• Immerse the thermo switch in a container
filled with coolant 2.
NOTE:
Make sure that the thermo switch terminals
do not get wet.
• Place a thermometer 3 in the coolant.
• Slowly heat the coolant, then let it cool to
the specified temperature as indicted in
the table.
• Check the thermo switch for continuity a
the temperatures indicated in the table.
WARNING
WARNING
• Handle the thermo switch with special
care.
• Never subject the thermo switch to
strong shocks. If the thermo switch is
dropped, replace it.
Å The thermo switch circuit is open and the
radiator fan is off.
ı The thermo switch circuit is closed and the
radiator fan is on.
• Does the thermo switch operate properly
as described above?
Yes → OK.
No → Replace.
Test step
Coolant temperature
Continuity
Thermo switch
1
0 ~ 100 ± 3˚C
(0 ~ 212 ± 37.4˚F)
NO
2
More than 105 ± 3˚C
(221 ± 37.4˚C)
YES
3*
105 to 100 ˚C
(221 to 212 ˚F)
YES
4*
Less than 100 ˚C (212 ˚F)
NO
Test steps 1 & 2: Heating phase
Test steps 3* & 4*: Cooling phase
T
R
.
.
Thermo switch
23 Nm (2.3 m • kg, 17 ft • lb)
Three bond sealock
®
10

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