Yamaha YZ450F User Manual

CYLINDER HEAD
5-20
7 Oil passage plug 1
For installation, reverse the removal proce-
dure.
Removing the cylinder head
Order Part name Q’ty Remarks
7
6
6
1st
2nd
Final
20 Nm (2.0 m
•
kgf, 14 ft
•
Ibf)
T
.
R
.
30 Nm (3.0 m
•
kgf, 22 ft
•
Ibf)
10 Nm (1.0 m
•
kgf, 7.2 ft
•
Ibf)
T
.R.
10 Nm (1.0 m
•
kgf, 7.2 ft
•
Ibf)
T
.R.
15 Nm (1.5 m
•
kgf, 11 ft
•
Ibf)
T
.R.

Yamaha YZ450F Specifications

General

Displacement	449cc
Bore x Stroke	97.0 mm x 60.8 mm
Transmission	5-speed
Final Drive	Chain
Width	32.5 in
Seat Height	38.2 in
Wheelbase	58.5 in
Fuel Capacity	1.6 gal
Fuel System	Fuel Injection
Front Suspension	KYB® Speed-Sensitive System inverted fork; fully adjustable, 12.2-in travel
Front Brakes	Hydraulic single disc, 270mm
Rear Brakes	Hydraulic single disc
Front Tire	80/100-21
Rear Tire	120/80-19
Wet Weight	245 lbs
Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valve