ENGINE SPECIFICATIONS
2-2
EAS2GC1062
ENGINE SPECIFICATIONS
EngineEngine type Liquid cooled 4-stroke, DOHC
Displacement 449 cm
3
Number of cylinders Single cylinder
Bore stroke 97.0 60.8 mm (3.82 2.39 in)
Compression ratio 12.5:1
Starting system Electric starter and kickstarter
Fuel
Recommended fuel Premium unleaded gasoline only
Fuel tank capacity 7.5 L (2.0 US gal, 1.7 Imp.gal)
Fuel reserve amount 2.0 L (0.5 US gal, 0.4 Imp.gal)
Engine oilLubrication system Wet sump
Recommended brand YAMALUBE
Type SAE 10W-40, SAE 10W-50, SAE 15W-40, SAE 20W-40 or SAE 20W-50
Recommended engine oil grade API service SG type or higher, JASO standard MA
Engine oil quantity
Quantity (disassembled) 0.95 L (1.00 US qt, 0.84 Imp.qt)
Oil change 0.67 L (0.71 US qt, 0.59 Imp.qt)
With oil filter removal 0.69 L (0.73 US qt, 0.61 Imp.qt)
Oil filterOil filter type Paper
Bypass valve opening pressure 40.0–80.0 kPa (0.40–0.80 kgf/cm
2,
5.8–11.6 psi)
Oil pump Oil pump type Trochoid
Inner-rotor-to-outer-rotor-tip clear ance 0.000–0.150 mm (0.0000–0.0059 in)
Limit 0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump-housing clearance 0.13–0.18 mm (0.0051–0.0071 in)
Limit 0.24 mm (0.0094 in)
Oil-pump-housing-to -inner-and-outer-rotor
clearance 0.06–0.11 mm (0.0024–0.0043 in)
Limit 0.17 mm (0.0067 in)
Cooling system
Radiator (including all routes) 1.03 L (1.09 US qt, 0.91 Imp.qt)
Radiator capacity 0.57 L (0.60 US qt, 0.50 Imp.qt)
Radiator cap valve opening pressure 107.9–137.3 kPa (1.08–1.37 kg/cm
2,
15.6–19.9 psi)
Radiator core Width 112.6 mm (4.43 in)
Height 235.0 mm (9.25 in)
Depth 28.0 mm (1.10 in)
Water pump
Water pump type Single suction centrifugal pump
Spark plug(s)Manufacturer/model NGK/CR8E
Spark plug gap 0.7–0.8 mm (0.028–0.031 in)
ENGINE SPECIFICATIONS
2-5
CrankshaftCrank assembly width 61.93–62.00 mm (2.438–2.441 in)
Runout limit 0.030 mm (0.0012 in)
Big end side clearance 0.150–0.450 mm (0.0059–0.0177 in)
BalancerBalancer drive method Gear
ClutchClutch type Wet, multiple-disc
Clutch release method Inner push, cam push
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 2.85 mm (0.112 in)
Plate quantity 3 pcs
Friction plate 2 thickness 2.92–3.08 mm (0.115–0.121 in)
Wear limit 2.85 mm (0.112 in)
Plate quantity 5 pcs
Clutch plate 1 thickness 1.90–2.10 mm (0.075–0.083 in)
Plate quantity 4 pcs
Warpage limit 0.10 mm (0.004 in)
Clutch plate 2 thickness 1.50–1.70 mm (0.059–0.067 in)
Plate quantity 3 pcs
Warpage limit 0.10 mm (0.004 in)
Clutch spring free length 50.00 mm (1.97 in)
Limit 47.50 mm (1.87 in)
Spring quantity 6 pcs
Push rod bending limit 0.10 mm (0.004 in)
TransmissionTransmission type Constant mesh 5-speed
Primary reduction system Spur gear
Primary reduction ratio 2.609 (60/23)
Final drive Chain
Secondary reduction ratio 3.846 (50/13)
Operation Left foot operation
Gear ratio
1st 2.417 (29/12)
2nd 1.733 (26/15)
3rd 1.313 (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)
Shifting mechanism
Shift mechanism type Shift drum and guide bar
Shift fork guide bar bending limit 0.050 mm (0.0020 in)
Shift fork thickness 4.85 mm (0.1909 in)
Decompression deviceDevice type Auto decomp
Air filterAir filter element Wet element
Air filter oil grade Yamaha foam air filter oil or other quality foam air filter oil
CHASSIS SPECIFICATIONS
2-8
Rear brakeType Hydraulic single disc brake
Operation Right foot operation
Brake pedal position 5.0 mm (0.20 in)
Rear disc brake
Disc outside diameter thickness 245.0 4.0 mm (9.65 0.16 in)
Brake disc thickness limit 3.5 mm (0.14 in)
Brake disc runout limit (as measured on wheel) 0.15 mm (0.0059 in)
Brake pad lining thickness 6.4 mm (0.25 in)
Limit 1.0 mm (0.04 in)
Master cylinder inside diameter 11.0 mm (0.43 in)
Caliper cylinder inside diameter 25.40 mm (1.00 in)
Specified brake fluid DOT 4
Steering Steering bearing type Taper roller bearing
Center to lock angle (left) 43.0 °
Center to lock angle (right) 43.0 °
Front suspension
Type Telescopic fork
Spring/shock absorber type Coil spring/Hydraulic damper
Front fork travel 310.0 mm (12.20 in)
Fork spring free length 470.0 mm (18.50 in)
Limit 465.0 mm (18.31 in)
Fork spring installed length 470.0 mm (18.50 in)
Spring rate K1 4.50 N/mm (0.46 kgf/mm, 25.71 lbf/in)
Spring stroke K1 0.0–310.0 mm (0.00–12.20 in)
Inner tube outer diameter 48 mm (1.9 in)
Inner tube bending limit 0.2 mm (0.01 in)
Optional spring available Yes
Recommended oil Yamaha Suspension Oil S1
Quantity 545.0 cm
3 (18.43 US oz, 19.18 Imp.oz)
Rebound damping adjusting positions
Minimum 20 clicks out*
Standard 11 clicks out*
Maximum Fully turned in * With the adjuster fully turned in
Compression damping adjusting positions Minimum 20 clicks out*
Standard 13 clicks out*
Maximum Fully turned in
* With the adjuster fully turned in
