Home | Chain Saws | Chain Saw Chain | Bar Mount Patterns | Carburetors | Manufacturers | Trademarks | Collectors | Bulletins | Events | Stolen Saws | Chain Saw Age Reprints | Newsletter | Marketplace | Parts Sources | Cartoons | Links | Your Host



Model: Junior

MANUFACTURED BY:
SPEAR & JACKSON Co.
VANCOUVER, BRITISH COLUMBIA, CANADA
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1946
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
125cc (7.62 cu. in.) (Villiers)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
50 mm (1.96 in.)
PISTON STROKE:
62 mm (2.44 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
Cast Iron
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
not advertised
WEIGHT:
75 lbs. with 48 in. bar, chain & tailstock
34 kg with 122 cm bar, chain & tailstock
OPERATOR CONFIGURATION:
Two Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Manual, dry plate disk
DRIVE TYPE:
Bevel gear transmission
CONSTRUCTION:
Sand cast aluminum
MAGNETO TYPE:
Villiers
CARBURETOR:
Villiers
MAJOR REPAIR KIT:
nla
MINOR REPAIR KIT:
nla
AIR FILTER SYSTEM:
Metal screen
STARTER TYPE:
Rope
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
3,000 to 3,850
IDLE RPM:
IGNITION TIMING:
Lock flywheel so points break 0.375 in. (9.5 mm) before TDC
BREAKER POINT SETTING:
0.015 in. (0.38 mm)
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Lodge CB3 (18 mm)
SPARK PLUG GAP:
0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:
Ball and Roller types
FUEL TANK CAPACITY:
FUEL OIL RATIO:
12:1
RECOMMENDED FUEL OCTANE:
Regular grade 72 to 83
MIX OIL SPECIFICATION:
SAE 40
CHAIN PITCH:
.750 in. (19 mm)
CHAIN TYPE:
Scratcher
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
36 in. (91 cm)
LONGEST GUIDE BAR SUPPLIED:
48 in. (121 cm)
COLOUR SCHEME:
Red enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Saw in Mike Acres collection

 

Reproduction of this World Wide Web Site in whole or in part is prohibited without permission.
Copyright © 2000-2021 MIKE ACRES - All rights are reserved.