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STORAGE (1 month or longer)
Storing Chain Saw (1 month or longer)
1. Drain all fuel from tank into a container approved for gasoline.
Run engine until it stops. This will remove all fuel-oil mix which
could become stale and leave varnish and gum in the fuel
system.
2. Clean all foreign material from the saw. Store it in a well-
ventilated place that is inaccessible to children. Keep away
from corrosive agents such as garden chemicals and de-icing
salts.
3. Abide by all Federal and local regulations for the safe storage
and handling of gasoline. Excess fuel should be used in other
2-cycle engine powered equipment.
TECHNICAL DATA
CS71
ENGINE:
Displacement: 4.3 cu. in (70.8 cc)
Bore: 1.97 in (50 mm)
Stroke: 1.42 in (36 mm)
PERFORMANCE:
Idle Speed: 2,800 RPM
WOT (With Bar and Chain): 13,200-13,700 RPM
Power: 5.1 hp/3.8kW (9,300 RPM)
CS81
ENGINE:
Displacement: 4.9 cu. in (80.7 cc)
Bore: 2.0 in (52 mm)
Stroke: 1.5 in (38 mm)
PERFORMANCE:
Idle Speed: 2,800 RPM
WOT (With Bar and Chain): 12,800
(Electronically Limited to
13,000 +/- 200)
Power: 5.7 hp/4.2kW (9,000 RPM)
CS71 and CS81
FUEL AND OIL SYSTEMS:
Carburetor: Multi Position Diaphragm Carburetor
Air Filter: 60 Micron Nylon Media
Fuel Tank Capacity: 29.76 oz. (880 ml)
Fuel Mix: See Operation-Fueling Section
Oil Tank Capacity: 14.88 oz. (440 ml)
Chain Lubrication: Automatic Speed Controlled Positive
Displacement Pump
IGNITION SYSTEM:
Spark Plug: Champion RCJ-7Y
Spark Plug Gap: 0.02 in. (0.5 mm)