Yamaha YZF-R1 2004 User Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-26
3
EAU15311
Ignition circuit cut-off system
The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.
● It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.
● It prevents starting when the trans-
mission is in gear and the clutch le-
ver is pulled, but the sidestand is
still down.
● It cuts the running engine when the
transmission is in gear and the sid-
estand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
WARNING
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system be-
fore riding.
U5VYE0E0.book Page 26 Friday, November 14, 2003 11:47 AM

Yamaha YZF-R1 2004 Specifications

General

Bore x Stroke	77.0 mm x 53.6 mm
Compression Ratio	12.4:1
Maximum Power	172 hp @ 12, 500 rpm
Fuel System	Fuel Injection
Ignition	Digital TCI
Transmission	6-speed
Final Drive	Chain
Frame	Aluminum Deltabox
Rear Suspension	Single shock, fully adjustable
Front Tire	120/70-ZR17
Rear Tire	190/50-ZR17
Maximum Torque	78.2 lb-ft @ 10, 500 rpm
Front Suspension	43mm telescopic fork, fully adjustable
Front Brakes	Dual 320mm discs; radial-mount 4-piston calipers
Rear Brakes	220mm disc; single-piston caliper
Wheelbase	1, 395 mm
Seat Height	835 mm
Fuel Capacity	4.8 gallons
Dry Weight	172 kg
Width	720 mm
Height	1, 105 mm
Ground Clearance	135 mm
Engine Type	Liquid-cooled, 4-stroke, DOHC, 5-valve, inline 4-cylinder