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Model: 1680

MANUFACTURED BY:
SKIL CORPORATION
CHICAGO, ILLINOIS, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1969
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
7.5 cu. in. (123cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.625 in. (67 mm)
PISTON STROKE:
1.375 in. (35 mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
WEIGHT:
21-1/2 lbs. (9.8 kg) powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Sand cast magnesium
MAGNETO TYPE:
Wico FW series
CARBURETOR:
Tillotson HL series
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Flocked wire screen element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Automatic with manual override
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
35 degrees BTDC
BREAKER POINT SETTING:
0.015 in. (0.38 mm)
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Champion J6J, Autolite A3X, AC M44C
SPARK PLUG GAP:
0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
2-1/2 Imp. Pint (1420 ml)
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular grade 72 to 83
MIX OIL SPECIFICATION:
Two-cycle chain saw mix oil
CHAIN PITCH:
.404 in.
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
15 in. (38 cm)
LONGEST GUIDE BAR SUPPLIED:
48 in. (122 cm)
COLOUR SCHEME:
White with Blue top cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Built in Vancouver, BC Canada, same as PM model 275



 

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