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Specifications


EU Gas Engine Emission Compliance

NOTE: The installed engines do comply with the European environmental engine emission directives 2002/88/EC and 97/68/EC based on the certificates received by the engine supplier.

Engine

Manufacturer Briggs & Stratton

Model Series 121602

Cycle 4

Valve Type Over Head Valve (OHV)

Choke Primer Bulb

Displacement 190 cc (11.59 cu in.)

Bore 68 mm (2.64 in.)

Stroke 52 mm (2.04 in.)

Armature Air Gap 0.25-0.36 mm (0.010-0.014 in.)

Intake Valve Clearance 0.10-0.20 mm (0.004-0.008 in.)

Exhaust Valve Clearance 0.10-0.20 mm (0.004-0.008 in.)

Operating Range 3100 - 3300 rpm

Spark Plug John Deere M78543, Champion RC12YC

Spark Plug Gap 0.51 mm (0.020 in.)

Spark Plug Torque 20 N•m (15 lb-ft)

Starter Recoil

Air Cleaner Paper Element with Foam Pre-Cleaner

Capacities

Fuel 1.5 L (1.6 qt)

Engine Oil approximately 590 ml (20 oz)

Grease as needed

Travel Speed Range

JS63 and JS63C

First Gear 3.1 km/h (1.9 mph)

Second Gear 3.9 km/h (2.4 mph)

Third Gear 5.0 km/h (3.1 mph)

Machine Specifications

Deck Material Steel

Adjustable Handle Standard

Rear Grass Bag

JS63 Available

JS63C Available

Side Discharge Chute Standard

Mulching Standard

Mower Blade Bolt Torque 75 N•m (55 lb-ft)

Safety System Zone Start

Dimensions (JS63, JS63C)

Wheel Size 8.75 x 2.25

Mower Weight without Attachments

JS63 and JS63C 38.6 kg (85 lb)

Cutting Height Range 2.5 - 10.2 cm (1 - 4 in.)

Cutting Width 53.3 cm (21 in.)

Recommended Lubricants

Engine Oil TORQ-GARD SUPREME® (SAE 30 or SAE 10W-30)

Grease John Deere MOLY HIGH TEMPERATURE EP GREASE.

John Deere HIGH TEMPERATURE EP GREASE.

John Deere GREASE GARD™.

Fast Idle Engine Speed

JS63, JS63C Walk-Behind Rotary Mower 3200 +/- 100 r/min

Speed of Rotation of Cutting Device

JS63, JS63C Walk-Behind Rotary Mower 3300 r/min

Sound Measurements

Averaged Sound Level at Work Station According to EN836-A2

JS63, JS63C Walk-Behind Rotary Mower 85.1 dB(A) at 3300 r/min engine speed

Vibration

Hand/Arm Measured Per EN836-A2

JS63, JS63C Walk-Behind Rotary Mower 2.9 m/s2 at 3300 r/min engine speed

(Specifications and design subject to change without notice)