Yamaha YZ450FX 2019, Руководство по эксплуатации для владельца

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ENGINE SPECIFICATIONS
2-4
Piston ring
Top ring
End gap (installed) 0.20–0.30 mm (0.0079–0.0118 in)
End gap limit 0.55 mm (0.0217 in)
Ring side clearance 0.015–0.065 mm (0.0006–0.0026 in)
Side clearance limit 0.120 mm (0.0047 in)
2nd ring
End gap (installed) 0.35–0.50 mm (0.0138–0.0197 in)
End gap limit 0.85 mm (0.0335 in)
Ring side clearance 0.020–0.060 mm (0.0008–0.0024 in)
Side clearance limit 0.100 mm (0.0039 in)
Crankshaft
Crank assembly width 61.93–62.00 mm (2.438–2.441 in)
Runout limit 0.030 mm (0.0012 in)
Clutch
Clutch type Wet, multiple-disc
Clutch lever free play 7.0–12.0 mm (0.28–0.47 in)
Friction plate 1 thickness 2.92–3.08 mm (0.115–0.121 in)
Wear limit 2.82 mm (0.111 in)
Plate quantity 6 pcs
Friction plate 2 thickness 2.92–3.08 mm (0.115–0.121 in)
Wear limit 2.82 mm (0.111 in)
Plate quantity 2 pcs
Clutch plate thickness 1.50–1.70 mm (0.059–0.067 in)
Plate quantity 7 pcs
Warpage limit 0.10 mm (0.004 in)
Clutch spring free length 48.00 mm (1.89 in)
Limit 45.60 mm (1.80 in)
Push rod bending limit 0.10 mm (0.004 in)
Drivetrain
Primary reduction ratio 2.609 (60/23)
Transmission type Constant mesh 5-speed
Gear ratio
1st 2.416 (29/12)
2nd 1.733 (26/15)
3rd 1.312 (21/16)
4th 1.050 (21/20)
5th 0.840 (21/25)
Main axle runout limit 0.08 mm (0.0032 in)
Drive axle runout limit 0.08 mm (0.0032 in)
Secondary reduction ratio 3.846 (50/13)
Final drive Chain
Air filter
Air filter element Wet element
Air filter oil grade Yamaha foam air filter oil or other quality foam
air filter oil
Fuel pump
Pump type Electrical
Maximum consumption amperage 2.4 A