Yamaha YZF-R7 User Manual

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ELEC
ELECTRIC STARTING SYSTEM
CHECKING THE STARTER RELAY
• Disconnect the starter relay from the cou-
pler.
• Connect the pocket tester (Ω × 1) and bat-
tery (12 V) to the starter relay coupler as
shown.
• Does the starter relay have continuity
between red and black?
Yes → Good.
No → Replace.
Battery positive terminal → brown 1
Battery negative terminal →
blue/white 2
Tester positive probe → red 3
Tester negative probe → black 4
CHECKING THE DIODES
• Remove the diodes from the couplers.
• Connect the pocket tester (Ω × 1) to the
diode as show.
• Check the diodes for continuity.
NOTE:
When you switch the tester’s positive and
negative probes, the readings in the above
chart will be reversed.
• Are the tester readings correct?
Yes → Good.
No → Replace the defective diode(-s).
Tester positive probe →
brown 1
Tester negative probe →
blue/white 2
Continu-
ity
Tester positive probe →
blue/white 3
Tester negative probe →
blue/yellow 4
Tester positive probe →
blue/white 2
Tester negative probe →
brown 1
No conti-
nuity
Tester positive probe →
blue/yellow 4
Tester negative probe →
blue/white 3
Br
L/W
1
2
L/W
L/Y
3
4

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