Black finned XR650 motorcycle engine

Single · model 185YMQ

XR650

USD 1,144

650cc class
25 kW6000 rpm
45 N·m5000 rpm
50kg net

Architecture

Configuration
Single cylinder, four-stroke, air/oil cooled
Bore
100 mm
Stroke
82 mm
Displacement
643.7 cc
Nominal class
650 cc
Compression
8.3:1
Valve gear
Overhead camshaft
Lubrication
Pressure and splash

Output

Max net power
25 kW / 6000 rpm
Max torque
45 N·m / 5000 rpm
Min fuel use
≤354 g/kWh
Idle
1600 ± 150 rpm
Idle emissions
CO ≤ 2.5%, HC ≤ 250 ppm
Starting
Electric
Starting time
≤15 s
Ignition
ECU
Ignition advance
ECU

Transmission

Clutch
4-post, 7-plate wet clutch
Final drive
Chain
Gearbox
Constant-mesh gears
Shift pattern
5-speed international
Primary ratio
2.209
Gear ratios
1st 2.667, 2nd 1.647, 3rd 1.25, 4th 1.0, 5th 0.84
Output sprocket
14 teeth

Service

Net weight
50 kg
Overall size
410 x 320 x 465 mm
Fuel grade
93#
Fuel system
EFI
Oil grade
SN 5W-40
Oil capacity
2.5 L
Spark plug
DPR8EA/9
Oil pump
Twin rotor
Magneto
Permanent-magnet DC

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