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Model: 1850

MANUFACTURED BY:
PIONEER SAWS LTD.
PETERBOROUGH, ONTARIO, CANADA
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1968
YEAR DISCONTINUED:
1969
ENGINE DISPLACEMENT:
6.56 cu. in. (107cc)
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:
28 lbs. 1 oz. (13.15 kg) powerhead only
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 and sand cast magnesium
MAGNETO TYPE:
Pioneer flywheel type
CARBURETOR:
Pioneer 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:
6,500 working speed
IDLE RPM:
IGNITION TIMING:
30 degrees before TDC
BREAKER POINT SETTING:
0.020 in.
FLYWHEEL/COIL AIR GAP:
0.008 to 0.012 in. (0.2 to 0.25 mm)
SPARK PLUG TYPE:
Champion CJ4
SPARK PLUG GAP:
0.030 in.
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
35.2 fl oz. (997 ml)
FUEL OIL RATIO:
12:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
SAE 30 to 40 Two cycle motor oil
CHAIN PITCH:
1/2 in. , .500"
CHAIN TYPE:
Pioneer Duracut .063 gauge
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
20 in. (50 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:


Image supplied by Wayne Sutton


 

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