Yamaha YZ450F 2021 User Manual

CAMSHAFT
5-13
EAM20106
CAMSHAFT
* Yamaha bond No. 1215 (Three bond No.1215®)
Removing the cylinder head cover
Order Job/Parts to remove Q’ty Remarks
Seat
Refer to “GENERAL CHASSIS” on page
4-1.
Side cover (left/right)
Refer to “GENERAL CHASSIS” on page
4-1.
Air scoop (left/right)
Refer to “GENERAL CHASSIS” on page
4-1.
Fuel tank Refer to “FUEL TANK” on page 7-1.
Ignition coil Refer to “ENGINE REMOVAL” on page 5-6.
1 Cylinder head breather hose 1
2 Spark plug 1
3 Cylinder head cover 1
4 Cylinder head cover breather plate 1
5Gasket 1
6 Timing chain guide (top side) 1
7 Cylinder head cover gasket 1
8Gasket 1
1
2
3
6
7
10 N・m (1.0 kgf・m, 7.4 lb・ft)
13 N・m (1.3 kgf・m, 9.6 lb・ft)
10 N・m (1.0 kgf・m, 7.4 lb・ft)
4
5
LT
8

Yamaha YZ450F 2021 Specifications

General

Bore x Stroke	97.0mm x 60.8mm
Compression Ratio	13.0:1
Ignition	TCI: Transistor Controlled Ignition
Transmission	5-speed
Final Drive	Chain
Suspension Rear	KYB® single shock; fully adjustable, 12.5-in travel
Brakes Front	Hydraulic single disc brake, 270mm
Length	85.6 in
Width	32.5 in
Seat Height	38.2 in
Wheelbase	58.5 in
Ground Clearance	13.0 in
Fuel Capacity	1.6 gal
Wet Weight	245 lb
Engine Type	449cc liquid-cooled DOHC 4-stroke; 4 valves
Fuel Delivery	fuel injection
Suspension Front	KYB® Speed-Sensitive System, inverted fork; fully adjustable, 12.2-in travel
Brakes Rear	Hydraulic disc, 240mm
Tires Front	80/100-21
Tires Rear	120/80-19