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2017 Yamaha YZF-R6

Engine Configuration Inline Four, 4-Stroke
Engine Displacement 599cc
Engine Cooling System Liquid
Compression Ratio 13.1:1
Combustion Chamber Design Pentroof
Valves Per Cylinder 4
Intake Valves Per Cylinder
2 (Titanium)
Exhaust Valves Per Cylinder
2 (Titanium)
Bore x Stroke 67.0 mm x 42.5mm
Claimed Peak Horsepower
Claimed Peak Torque
Measured Peak Horsepower
Measured Peak Torque
Measured Horsepower To Weight Ratio
Engine Redline 16,000 rpm
Valve Angle (Included) 11.5 degrees/ 12.25 degrees (23.75 degrees)
Combustion Chamber Volume 12.38 cc
Valve Train Type
DOHC, Link-plate Chain Drive,
Bucket Followers, Shim-under-bucket
Lash Adjustment
Valve Adjustment Interval 26,600 miles
Intake Valve Diameter 27.0 mm
Exhaust Valve Diameter 23.0 mm
Intake Valve Stem Diameter 4.5 mm
Exhaust Valve Stem Diameter 4.5 mm
Intake Valve Maximum Lift 8.5 mm
Exhaust Valve Maximum Lift 7.7 mm
Intake Valve Timing
Open BTDC
39 degrees
Close ABDC
65 degrees
Duration
284 degrees
Exhaust Valve Timing
Open BBDC
64 degrees
Close ATDC
24 degrees
Duration
268 degrees
Valve Timing Measuring Point 0.15 (Intake)/ 0.25 (Exhaust)
Fuel Delivery System Mikuni Fuel Injection
Throttle Body Venturi Size 41 mm
Air Filter Type Pleated Paper
Exhaust System Type 4-2-1, Stainless Steel w/ Titanium muffler
Ignition System Digital
Lubrication System Wet Sump
Oil Capacity 3.6 quarts (3.4 liters)
Fuel Capacity 4.6 gallons (17.5 liters)
Transmission Type 6-speed, Constant mesh
Clutch Type Multi-plate, Wet
Clutch Actuation System
Cable
Clutch Spring Type
Coil
Number Of Clutch Springs 6

Number of Clutch Plates
17
Drive Plates
9
Driven Plates
8
Primary Drive Gear (Straight-cut)
Primary Drive Gear Teeth (Ratio) 85/41 (2.073:1)
Final Drive Sprocket Teeth (Ratio) 45/16 (2.813:1)
Transmission Gear Teeth (Ratios)
6th
23/ 20 (1.150:1)
5th
27/21 (1.286:1)
4th
26/18 (1.444:1)
3rd
30/ 18 (1.667:1)
2nd
32/ 16 (2.000:1)
1st
31/ 12 (2.583:1)
Transmission Overall Ratios
6th
6.706: 1
5th
7.499: 1
4th
8.420: 1
3rd
9.721: 1
2nd
11.663: 1
1st
15.062:1
Theoretical Speed in Gears at Redline
6th
176 mph
5th
157 mph
4th
140 mph
3rd
121 mph
2nd
101 mph
1st
78 mph