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Model: 250

MANUFACTURED BY:
McCULLOCH MOTORS CORP.
LOS ANGELES, CALIFORNIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
600010
SERIAL NUMBER PREFIX:
10-
YEAR INTRODUCED:
February 1967
YEAR DISCONTINUED:
February 1968
ENGINE DISPLACEMENT:
4.9 cu. in. (80ccm)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.125 in. (53.9mm)
PISTON STROKE:
1.375 in. (34.9mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valves with third port transfer
MANUFACTURER ADVERTISED H.P.:
WEIGHT:
21.4 lbs. powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast MAGNESIUM
MAGNETO TYPE:
McCulloch, points located under flywheel
CARBURETOR:
Tillotson HL series (some had 58856C McCulloch carb)
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
DG5-HL
AIR FILTER SYSTEM:
Flocked wire screen
STARTER TYPE:
McCulloch automatic rewind with nylon rope
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
6,000
IDLE RPM:
IGNITION TIMING:
25 degrees before TDC
BREAKER POINT SETTING:
0.018 in. (0.45mm)
FLYWHEEL/COIL AIR GAP:
0.011 to 0.015 in. (0.27 to 0.38 mm)
SPARK PLUG TYPE:
Champion J8J
SPARK PLUG GAP:
0.025 in. (0.63mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
40 oz.
FUEL OIL RATIO:
40:1 with McCulloch mix oil
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
McCulloch two-cycle chain saw mix oil
CHAIN PITCH:
.404 in.
CHAIN TYPE:
McCulloch Pintail
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
12 in. (30cm)
LONGEST GUIDE BAR SUPPLIED:
24 in. (61cm)
COLOUR SCHEME:
McCulloch Yellow enamel with Black air filter cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
68923, micro fiche card 9
SERVICE MANUAL:
63829, micro fiche card 34D

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