MANUFACTURED BY: |  | McCULLOCH MOTORS CORP. |
 | | LOS ANGELES, CALIFORNIA, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | 600075 |
SERIAL NUMBER PREFIX: | | 10-, A10-, 11-, A11-, 12- |
YEAR INTRODUCED: | | August 1969 |
YEAR DISCONTINUED: | | May 1971 |
ENGINE DISPLACEMENT: | | 7.5 cu. in. (123ccm) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 2.280 in. (58 mm) |
PISTON STROKE: | | 1.835 in. (46.6 mm) |
PISTON RING THICKNESS: | | 2 rings used |
CYLINDER TYPE: | | Aluminum with cast iron sleeve |
INTAKE METHOD: | | Reed valves with third port induction system |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 23 lbs. (10.4 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast MAGNESIUM |
MAGNETO TYPE: | | McCulloch flywheel breaker point system |
CARBURETOR: | | Tillotson HS-124A
Walbro SDC series |
MAJOR REPAIR KIT: | | RK-23HS for Tillotson
K10-SDC for Walbro |
MINOR REPAIR KIT: | | DG-5HS/T for Tillotson
D10-SDC for Walbro |
AIR FILTER SYSTEM: | | Flocked wire screen element |
STARTER TYPE: | | Mcculloch automatic rewind on left side |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | |
IDLE RPM: | | |
IGNITION TIMING: | | 26 degrees before TDC |
BREAKER POINT SETTING: | | 0.21 in. (0.53 mm) |
FLYWHEEL/COIL AIR GAP: | | 0.010 to 0.015 in. (0.25 to 0.38 mm) |
SPARK PLUG TYPE: | | AC CS45T, Champion DJ8J |
SPARK PLUG GAP: | | 0.025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 20:1 |
RECOMMENDED FUEL OCTANE: | | Regular, minimum 70 octane |
MIX OIL SPECIFICATION: | | McCulloch two-cycle chain saw mix oil |
CHAIN PITCH: | | 3/8 in. |
CHAIN TYPE: | | Mcculloch |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 18 in. (45 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 36 in. (91 cm) |
COLOUR SCHEME: | | McCulloch yellow enamel with Black top cover |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | 84264, micro fiche card 24 |
SERVICE MANUAL: | | none |