MANUFACTURED BY:
PIONEER SAWS LTD.
PETERBOROUGH, ONTARIO, CANADA
SERIES OR ASSEMBLY NUMBER:
P28, P28S
YEAR INTRODUCED:
1976
YEAR DISCONTINUED:
1981
ENGINE DISPLACEMENT:
3.14 cu. in. (51.4cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
1.625 in. (41mm)
PISTON STROKE:
1.500 in. (38mm)
CYLINDER TYPE:
Aluminum with chrome plated bore
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
not advertised
WEIGHT :
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Wico
CARBURETOR:
Tillotson HU-15E series
MAJOR REPAIR KIT:
RK-14HU
MINOR REPAIR KIT:
DG-2HU
AIR FILTER SYSTEM:
Flocked screen
STARTER TYPE:
Easy Arc system with compression release
OIL PUMP:
Automatic
OPERATING RPM:
7,500
IGNITION TIMING:
30 degrees before TDC
BREAKER POINT SETTING:
0.015 in. (0.38mm)
FLYWHEEL/COIL AIR GAP:
position is fixed
SPARK PLUG TYPE:
Champion CJ6
SPARK PLUG GAP:
0.030 in. (0.76mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
12 fl. oz. (350 ml)
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
OMC Two-cycle chain saw mix oil
CHAIN PITCH:
.325 in.
CHAIN TYPE:
Pioneer Duraguard
BAR MOUNT PATTERN:
01 link
SHORTEST GUIDE BAR SUPPLIED:
14 in. (35cm)
LONGEST GUIDE BAR SUPPLIED:
20 in. (51cm)
COLOUR SCHEME:
Pioneer Yellow enamel with Forest Green plastic air filter cover