Yamaha ’09 YZF-R1 User Manual

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8. AIS-plug Set (5VY-A4890-70)
This plug set is used when the AIS (Air Induction System), an exhaust gas purifying system, is
removed.
Installation
1. Remove the hose attached to the cylinder head cover and the air cut-off valve
accompanying the hose.
2. Remove the cap fitted to the hose, remove the reed valve and plate from inside.
3. Install the plate (5SL-1482L-70) in replacement of the cap. Apply liquid gasket to the plate.
4. Remove the cylinder head cover and the four collars fitted to the cover. Install the PIN
(93608-16M16).
5. After removing the hose connected to the air filter casing form the air cut-off assembly,
insert the PLUG (90336-10020) onto the side of the air filter casing to close the opening.
Parts List
No. PART No. PART NAME Q’TY REMARKS
1 5SL-1482L-70 PLATE, 2 2
* 2 93608-16M16 PIN, DOWEL 4
3 90336-10020 PLUG, TAPER 1

Yamaha ’09 YZF-R1 Specifications

General

Bore x Stroke	78.0mm x 52.2mm
Compression Ratio	12.7:1
Fuel Delivery	Fuel injection with YCC-T and YCC-I
Ignition	TCI: Transistor Controlled Ignition
Final Drive	Chain
Front Suspension	43mm inverted fork; fully adjustable, 4.7-in travel
Rear Suspension	Single shock; fully adjustable, 4.7-in travel
Rear Brakes	220mm disc; single-piston caliper
Front Tire	120/70-ZR17
Rear Tire	190/55-ZR17
Wheelbase	55.7 in
Seat Height	32.8 in
Fuel Capacity	4.8 gal
Curb Weight	454 lb
Length	81.5 in
Width	28.1 in
Engine Type	998cc, liquid-cooled inline 4-cylinder DOHC; 16 valves
Transmission	6-speed, multiplate slipper clutch
Front Brakes	Dual 310mm discs; radial-mount forged 6-piston calipers