John Deere X390 Engine Specifications
Engine Model – Kawasaki FS651V
Engine Type – 4-stroke, OHV, V-twin 90°
Max. horsepower – 22.3 PS (16.4 KW; 22.0 HP) at 3,600 rpm
Max. torque (crank PTO) – 53.3 Nm (5.4 kgm; 39.3 ft-lb) at 2,000 rpm
Bore – 78 mm (3.07 in)
Stroke – 76 mm (2.99 in)
Displacement – 726 cm3 (44.3 cu in.)
Cylinders – 2 (V-Twin)
Cycle – Four
Fuel Filter – Replaceable paper element
Fuel Pump – Pulse
Fuel Capacity – 12.5 L (3.3 gal)
Fuel Delivery – Carburetor
Carburetor – Internally vented with fuel shut-off solenoid
Cooling system – Air-cooling
Ignition system – Electronic spark ignition
Lubricating system – Full pressure with spin-on oil filter
Starting system – Bendix type starter
Charging system – 13A or 20A charge coil (option)
Fuel used – Unleaded gasoline (octane number 86 or higher)
Cooling system – Pressurized forced circulation type
Engine Maximum speed – 3500 ± 100 rpm
Idle speed – 1500 ± 100 rpm
Cylinder compression – 4.5 kg/cm2 (64 psi) at 500 rpm
Intake valve clearance – 0.10-0.15 mm (0.004-0.006 in)
Exhaust valve clearance – 0.10-0.15 mm (0.004-0.006 in)
Oil type – 4-stroke or an equivalent (SJ or higher class)
Recommended oil – SAE 10W-40, 10W-30
Oil capacity (with filter changed) – With oil filter 2.1 litre / Without
oil filter 1.8 litre
Spark plug – NGK BPR4ES
Spark plug gap – 0.7-0.8 mm (0.027-0.031 in)
Ignition coil air gap – 0.2-0.4 mm (0.008-0.011 in)
Spark plug tightening torque – 22 Nm; 2.2 kgm; 16.2 ft-lb
Length, mm (in) – 500 (19.7)
Width, mm (in) – 471 (18.5)
Height, mm (in) – 391 (15.4)
Dry weight, kg (lb) – 41.0 (90.4)
John Deere X390 Transmission
Transmission Type – Hydrostatic
Transaxle – Kanzaki Tuff Torq K58
Number of Speeds – Variable Speed
Reduction Ratio – 31.44:1
Axle Torque (rated) (Nm) – 294
Max. tire size (inch) – 23
Brake Capacity (Nm) – @13.9 N Brake Arm Force 470
Pump/Motor Displacement (cc/min-1) – 7/10
Max. Input Speed (min-1) – 3400
Axle Shaft Size (mm) – 25.4
Max. Static Weight on Axle (kg) – 285
Weight (Dry) (kg) – 15.3
Brake – Wet disk, internal
Housing (Case) – Aluminum Die Casting
Differential – Automotive Type Bevel Gears
Speed Control System – Foot Control / Hand Control
Bypass Valve – Standard
Oil Reservoir – Standard
Forward Speeds at Full Engine RPM – 0-10.0 km/h (0-6.2 mph)
Reverse Speeds at Full Engine RPM – 0-5.6 km/h (0-3.5 mph)
JD X390 Electrical System
Charging system – 13A or 20A charge coil (option)
Battery Type – 12 Volt
Cold Cranking Capacity – 340 Amps
Charge coil – 13 or 20 Amp
Starting Type – Electric Start
Starter – Bendix type
Tire Sizes
Front Tire Size – 15×6.50-8
Rear Tire Size – 22×11.00-10
Tire Inflation Pressure (Front) – 97 kPa (14 psi)
Tire Inflation Pressure (Rear) – 69 kPa (10 psi)
JD X390 Dimensions
Overall Height – 109 cm (43 in.)
Overall Width (without mower deck) – 104 cm (41 in.)
Length (Overall) – 173 cm (72 in.)
Machine Weights X390 (Without mower deck) – 243 kg (535 lb)
John Deere X390 Attachments
44 Inch Snow blower
Overall Length – 77.5 cm (30-1/2 in.)
Clearing Width – 1.1 m (43-1/4 in.)
Scraper Blade – Replaceable
Height to top of housing – 46 cm (18 in.)
Height to top of spout – 100 cm (40 in.)
Auger Speed – 110 rpm
Auger Diameter – 30.5 cm (12 in.)
Impeller Speed – 1060 rpm
Impeller Diameter – 35.5 cm (14 in.)
Lift Height (above ground level) – 10 cm (4 in.)
Lift Height (below ground level) – 5 cm (2 in.)
Discharge Chute Rotation – 200 Degrees
Net Weight – 82 kg (180 lb)
Accel Deep 48 Mower Deck
Type – Mid-mount
Cutting Width – 122 cm (48 in)
Blades-Rotary – 3
MulchControl Attachment – Optional
Mower Wheels – Adjustable
Blade Bolt Torque – 68 Nm (50 lb-ft)
Cutting Height (Approximately) – 25-102 mm (1-4 in)
Deck Weight – 60 kg (133 lb)
Accel Deep 54 Mower Deck
Type – Mid-mount
Cutting Width – 137 cm (54 in)
Blades-Rotary – 3
MulchControl Attachment – Optional
Mower Wheels – Adjustable
Blade Bolt Torque – 68 Nm (50 lb-ft)
Cutting Height (Approximately) – 25-102 mm (1-4 in)
Deck Weight – 69 kg (153 lb)