Yamaha yz450f 2012 Service Manual

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MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Wheel travel:
Front wheel travel 310 mm (12.2 in)
Rear wheel travel 315 mm (12.4 in) (For USA, CDN)
312 mm (12.3 in) (For EUROPE, AUS, NZ, ZA)
Electrical:
Ignition system TCI
Item Standard Limit
Cylinder head:
Warp limit ---- 0.05 mm (0.002
in)
Cylinder:
Bore size 97.00–97.01 mm (3.8189–3.8193 in) ----
Out of round limit ---- 0.05 mm (0.002
in)
Camshaft:
Drive method Chain drive (Left) ----
Camshaft cap inside diameter 22.000–22.021 mm (0.8661–0.8670 in) ----
Camshaft outside diameter 21.959–21.972 mm (0.8645–0.8650 in) ----
Shaft-to-cap clearance 0.028–0.062 mm (0.0011–0.0024 in) 0.08 mm (0.003
in)
Cam dimensions
Intake "A" 37.750–37.850 mm (1.4862–1.4902 in) 37.650 mm
(1.4823 in)
Intake "B" 28.129–28.229 mm (1.1074–1.1114 in) 28.029 mm
(1.1035 in)
Exhaust "A" 33.540–33.640 mm (1.3205–1.3244 in) 33.440 mm
(1.3165 in)
Exhaust "B" 24.769–24.869 mm (0.9752–0.9791 in) 24.669 mm
(0.9712 in)
Camshaft runout limit ---- 0.03 mm
(0.0012 in)

Yamaha yz450f 2012 Specifications

General

Bore x Stroke	97.0mm x 60.8mm
Compression Ratio	12.5:1
Fuel Delivery	Fuel Injection
Transmission	5-speed
Final Drive	Chain
Tires Front	80/100-21
Tires Rear	120/80-19
Wheelbase	58.7 in
Trail	4.6 in
Fuel Capacity	1.6 gal
Wet Weight	245 lb
Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valve
Ignition	TCI
Suspension Front	Telescopic fork, 12.2 in travel
Suspension Rear	Swingarm, 12.4 in travel
Brakes Front	Hydraulic single disc brake, 250mm
Brakes Rear	Single disc, 245 mm