MANUFACTURED BY: |  | HOMELITE-TEXTRON |
 | | PORT CHESTER, NEW YORK, USA |
SERIES OR ASSEMBLY NUMBER: | | UT10415C, UT10510C |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1974 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 5.01 cu. in. (82.1 cc) |
NUMBER OF CYLINDERS: | | Homelite Two-Cycle single cylinder loop scavenged engine |
CYLINDER BORE: | | 2.0625 in. (52.4 mm) |
PISTON STROKE: | | 1.500 in. (38.1 mm) |
PISTON RING THICKNESS: | | 0.024 in. thin steel, 2 rings used, pn 69452 |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | 4 reed pyramid type |
MANUFACTURER ADVERTISED H.P.: | | 5.19 SAE @ 8,500 RPM |
WEIGHT: | | 17 lbs. 4 oz. (7.8 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal, 6 metal shoes |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium |
MAGNETO TYPE: | | Capacitor discharge system on early models, solid state electronic on later models |
CARBURETOR: | | Tillotson HS-151A series |
MAJOR REPAIR KIT: | | RK-23HS |
MINOR REPAIR KIT: | | DG-5HS/T |
AIR FILTER SYSTEM: | | Cellulose fiber element |
STARTER TYPE: | | Homelite automatic rewind, cord is 48 in. of #pn 58806 |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | 7,500 under load |
IDLE RPM: | | |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.015 in. (0.38 mm) |
SPARK PLUG TYPE: | | Champion CJ6 with CD ignition
Champion DJ6Y with one piece solid state system |
SPARK PLUG GAP: | | 0.025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball and roller types |
FUEL TANK CAPACITY: | | 34.3 oz. (1 litre) |
FUEL OIL RATIO: | | 32:1 with Homelite oil |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Homelite chain saw mix oil |
CHAIN PITCH: | | 3/8 in. |
CHAIN TYPE: | | Homelite |
BAR MOUNT PATTERN: | | 14 link |
SHORTEST GUIDE BAR SUPPLIED: | | 16 in. (40 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 31 in. (78 cm) |
COLOUR SCHEME: | | Homelite Red enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | IPL no. 24831, 24831 rev1, 24831 rev2, 24831 rev3 |
SERVICE MANUAL: | | |