© 2009 ICS, Blount Inc.
F/N 70944 Oct 09
TITLE
633GC / 633F4 OPERATOR’S MANUAL
8
TECHNICAL SPECIFICATIONS
Engine Type
2-stroke, Air Cooled
Displacement
101cc (6.2 cu in)
Horsepower
6.5 HP (4.8 kw) @ 8700 RPM
Engine Speed
11,500+/-500 RPM, Mechanically
governed
Diamond Chain Speed
4,950 fpm (25m/s), free running
Idling Speed
2800-3200 RPM
Weight
27.5 lbs (12.5kg) with guide bar and
diamond chain
Cut Depth
14 in (36cm) & 16.2 in (41cm)
Bar Lengths
14 in (36cm) & 16.2 in (41cm)
Carburetor
Walbro WGAK3, Throttle shaft sealed,
Ignition
Selettra electronic – Water resistant
Clutch
Centrifugal, three shoe, single spring
Fuel ratio
25:1 gasoline-to-oil
Fuel Capacity
0.26 gallon (1 liter)
12-15 minutes run time per tank
Water Supply
Minimum 20psi (1.5 bar)
Water Flow
Minimum: 2 gpm (8 lpm)
Noise Level
102dB at 3 ft (1m)
Vibration Level
8 meters/sec
2
(front handle)
Engine Break-in Period
One tank, without cutting, cycling
throttle
Spark Plug
Champion CJ7Y or Bosch BWS7F