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Model: 850

MANUFACTURED BY:
PIONEER SAWS LTD.
PETERBOROUGH, ONTARIO, CANADA
SERIES OR ASSEMBLY NUMBER:
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1967
YEAR DISCONTINUED:
1968
ENGINE DISPLACEMENT:
6.56 cu. in. (107ccm)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.3125 in. (59mm)
PISTON STROKE:
1.5625 in. (40mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
not advertised
WEIGHT:
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Gear reduction, 2:1 standard, 3:1 optional
CONSTRUCTION:
Die cast Magnesium
MAGNETO TYPE:
Pioneer flywheel type
CARBURETOR:
Pioneer all position diaphragm type
MAJOR REPAIR KIT:
none available
MINOR REPAIR KIT:
none available
AIR FILTER SYSTEM:
Flocked screen
STARTER TYPE:
Pioneer automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
6,300 under load
IDLE RPM:
IGNITION TIMING:
30 degrees BTDC
BREAKER POINT SETTING:
0.020 in.
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE:
Champion J8J
SPARK PLUG GAP:
0.025 in.
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
40 oz. (1182ml)
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
Two-cycle mix
CHAIN PITCH:
1/2 in. , .500"
CHAIN TYPE:
Pioneer
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
20 in. (51 cm)
LONGEST GUIDE BAR SUPPLIED:
50 in. (127 cm)
COLOUR SCHEME:
Pioneer Yellow enamel with Forest Green top cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Replaced the 700G in the model line up.



 

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