Engine Specifications - Yamaha YZ450F(E) 2014 Owner's Service Manual

ENGINE SPECIFICATIONS

EAS1SL1053
Engine
Engine type
Displacement
Cylinder arrangement
Bore  stroke
Compression ratio
Starting system
Fuel
Recommended fuel
Fuel tank capacity
Engine oil
Lubrication system
Recommended brand
Type
Recommended oil grade
Engine oil quantity
Quantity (disassembled)
With oil filter element replacement
Without oil filter element replacement
Oil filter
Oil filter type
Oil pump
Oil pump type
Inner-rotor-to-outer-rotor-tip clearance
Limit
Outer-rotor-to-oil-pump-housing clearance
Limit
Oil-pump-housing-to-inner-and-outer-rotor 
clearance
Limit
Cooling system
Radiator capacity (including all routes)
Radiator capacity
Radiator cap opening pressure
Radiator core
Width
Height
Depth
Water pump
Water pump type
Spark plug
Manufacturer/model
Spark plug gap
ENGINE SPECIFICATIONS
Liquid cooled 4-stroke, DOHC
3
449 cm
Single cylinder
97.0  60.8 mm (3.82  2.39 in)
12.50:1
Kickstarter
Premium unleaded gasoline only
7.5 L (1.98 US gal, 1.65 Imp.gal)
Wet sump
YAMALUBE
SAE 10W-30, SAE 10W-40, SAE 15W-40, 
SAE 20W-40 or SAE 20W-50
API service SG type or higher, 
JASO standard MA
0.95 L (1.00 US qt, 0.84 Imp.qt)
0.69 L (0.73 US qt, 0.61 Imp.qt)
0.67 L (0.71 US qt, 0.59 Imp.qt)
Paper
Trochoid
Less than 0.150 mm (0.0059 in)
0.20 mm (0.0079 in)
0.13–0.18 mm (0.0051–0.0071 in)
0.24 mm (0.0094 in)
0.06–0.11 mm (0.0024–0.0043 in)
0.17 mm (0.0067 in)
1.04 L (1.10 US qt, 0.92 Imp.qt)
0.57 L (0.60 US qt, 0.50 mp.qt)
108–137 kPa (1.08–1.37 kg/cm
112.6 mm (4.43 in)
235.0 mm (9.25 in)
28.0 mm (1.10 in)
Single suction centrifugal pump
NGK/CR8E
0.7–0.8 mm (0.028–0.031 in)
2-2
2
15.7–19.9 psi)