Maker	YAMAHA	Engine Type	Water-cooled/4-cycle/DOHC/5 Valve/Single Cylinder
Model name	YZ450F	Engine Starting Method	Kick Starter
Type · Grade	-	Maximum Output (ps)	60.0ps(44.1kw)/9000rpm
Engine Operation	4 stroke	Maximum Torque (kgf/m)	5.4kg・m(52.9N・m)/6500rpm
Model		Vehicle Weight (Dry Weight)	100 kg
Displacement	449 cc	Vehicle Weight (Curb Weight)	110 kg
Release year	2003	Length(mm)・Height(mm)・Width(mm)	1303 x 827 x 2171
Fuel Efficiency by Catalog	-	Seat Height	-
Fuel Tank Capacity	7 liters	Front Tire Indication	80/100-21 51M WT
Fuel Supply	Carburetor	for Rear Tire Indication	110/90-19 62M WT

Standard Plug	-	Sprocket size	Drive Sprocket Teeth Number - Driven Sprocket Teeth Number -
Number of Used Plugs	-	Chain Size	520
Plug Gap	-	Battery Code	-
Engine Oil Amount	1.2	Head Light	- Headlamp Type: -
Engine Oil (Refill)	0.95L	Headlamp Remarks	-
Engine Oil (Element Replacement)	1.0L	Tail Light	- -
Front Blinker Rating	-	Rear Blinker Rating	-

Motor Model Code	-
Bore (mm)	95
Stroke (mm)	63.4
Compression Ratio	12.5
Ignition Method	C.D.I.
Engine Lubrication Type	Dry Sump
Frame Type	Steel Pipe Semi-double Cradle
Minimum Rotaion Radius	-
Caster Angle	27.0度
Trail Amount (mm)	118
Minimum Ground Clearance	-
Distance Between Axes	-
Turning Angle (Right)	-
Turning Angle (Left)	-
Seating Capacity	1
Fuel Tank Reserve Capacity	-

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Tires (202) 4.5
Tire Related Accessories(27) Bead Stopper Rim Lock(1) On-Road Tires(1) Off-Road Tire(173)
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Accessories


Accessories (31) 4.4
Electrical(1) Security(8) Others(22)
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Front Brake Type	Hydraulic Type Single Disc (Stainless Steel) Disc
Front Brake Remarks	-
Rear Brake Type	Hydraulic Type Single Disc (Stainless Steel) Disc
Rear Brake Remarks	-
Suspension Type (Front)	Telescopic
Front Suspension Stroke	-
Front Fork Type	-
Front Fork Diameter	-
Suspension Type (Rear)	Swing Arm
Number of Rear Shock Absorbers	-
Rear Suspension Stroke	-
Rear Wheel Travel	-
ABS	Not Available
Drive System	-
Differential Oil Amount	-
Chain Remarks	-

Under Seat Capacity	-
Helmet Storage Box	Not Available
Mirror Screw Hole Diameter	-
Mirror Remarks	-
Electronic Device Remarks	-
Fuel Gauge	Not Available
Clock	Not Available
Hazard	Not Available
Anti Theft Device	Not Available
Tail Light Base Shape	-
Tail Light Base Shape 2	-
Tail Light Remarks	-
Front Blinker Bulb Type	-
Front Blinker Base Shape	-

Clutch Type	Wet Type Multi Plate Coil Spring
Gear Ratio Type	Constant Mesh Forward 4-stages
Number of Gears	4
Gear Ratio	1.929 / 1.563 / 1.278 / 1.05
Primary Speed Reduction Ratio	2.818
Secondary Speed Reduction Ratio	3.429
Variable Speed Vehicle Gear Ratio	-
Tappet Clearance (mm) IN	-
Tappet Clearance (mm) EX	-
Idling Initial Value (rpm)	-
Needle Steps (Clip Location)	-
Float Level (mm)	-
Amount of returning Air Screw	-
Main Jet Type	-
Main Jet Number	-

Clutch Cable Length	-
Choke Cable Length	-
Meter Cable Length	-
Throttle Cable Length	-
Front Brake Cable Length	-
Rear Brake Cable Length	-
Other Cables	-
Engine Number (Production Launch)	-
Engine Number (Production End)	-


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YAMAHA YZ450F

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2003 YAMAHA YZ450F

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Motorcycle Parts

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