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Model: 1631

MANUFACTURED BY:
SKIL CORPORATION
CHICAGO, ILLINOIS, U.S.A.
SERIES OR ASSEMBLY NUMBER:
1630, 1631
YEAR INTRODUCED:
1969
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
4.2 cu. in. (69cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.0625 in. (52.3 mm)
PISTON STROKE:
1.25 in. (31.7 mm)
CYLINDER TYPE:
Aluminum with chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
WEIGHT:
13.6 lbs. powerhead
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Sand cast magnesium
MAGNETO TYPE:
Wico
CARBURETOR:
Tillotson HS
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Flocked screen
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
Fixed
BREAKER POINT SETTING:
0.015 in.
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Champion J6J, Autolite A3X, AC M44C
SPARK PLUG GAP:
0.025 in.
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
1.85 pints
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
Two-cycle chain saw mix oil
CHAIN PITCH:
.375 in.
CHAIN TYPE:
Oregon 73D
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
15 in. (38 cm)
LONGEST GUIDE BAR SUPPLIED:
24 in. (60 cm)
COLOUR SCHEME:
Orange enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Built in Vancouver, BC Canada same as PM model 340
Skil model 1630 is same saw but powerhead only



 

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