MANUFACTURED BY: |  | PM (Power Machinery Ltd.) |
 | | VANCOUVER, BRITISH COLUMBIA, CANADA |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1950 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 2.250 in (57mm) up to serial 3WR-3599 |
PISTON STROKE: | | 2.0 in. 50.8mm) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Chrome plated aluminum |
INTAKE METHOD: | | Reed valves (2) |
MANUFACTURER ADVERTISED H.P.: | | 5 @ 3,800 rpm |
WEIGHT: | | 35.5 lbs. with 20 in. bar & chain
16 kg with 50 cm bar & chain |
OPERATOR CONFIGURATION: | | One man or two man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Bevel gear transmission |
CONSTRUCTION: | | Sand cast magnesium |
MAGNETO TYPE: | | Wico FWS-18 used up to serial WR1599
Wico FW-2146 used thereafter |
CARBURETOR: | | Tillotson MD-44A |
MAJOR REPAIR KIT: | | nla |
MINOR REPAIR KIT: | | nla |
AIR FILTER SYSTEM: | | Shredded metal (copper mesh) and brass screen |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Manual pump |
MAXIMUM ENGINE RPM: | | 3800 |
IDLE RPM: | | |
IGNITION TIMING: | | |
BREAKER POINT SETTING: | | .020 in. (0.51 mm) |
FLYWHEEL/COIL AIR GAP: | | Position is fixed |
SPARK PLUG TYPE: | | Champion J8 (PM # 10252) |
SPARK PLUG GAP: | | .025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 1-1/2 Imperial Quarts |
FUEL OIL RATIO: | | 1 pint to 1 gallon Imperial measure |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | SAE 40 or SAE 50 |
CHAIN PITCH: | | 9/16 in. |
CHAIN TYPE: | | PM with COX design cutter |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 14 in. (35.5cm) |
LONGEST GUIDE BAR SUPPLIED: | | 60 in. (152cm) |
COLOUR SCHEME: | | Red wrinkle finish enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |