MANUFACTURED BY: |  | HOMELITE-TEXTRON |
 | | PORT CHESTER, NEW YORK, USA |
SERIES OR ASSEMBLY NUMBER: | | UT10540 UT10604-A |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1981 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 3.27 cu. in. (53.6 ccm) |
NUMBER OF CYLINDERS: | | Homelite Two-Cycle single cylinder loop scavenged engine |
CYLINDER BORE: | | 1.687 in. (43 mm) |
PISTON STROKE: | | 1.464 in. (37 mm) |
PISTON RING THICKNESS: | | 2 rings, pn 93823 |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Reed valves |
MANUFACTURER ADVERTISED H.P.: | | 3.29 SAE @ 8,000 RPM |
WEIGHT: | | 12 lbs. 8 oz. (5.7 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | Optional, mechanical |
CLUTCH: | | Centrifugal, 3 metal shoes |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Injection molded Polymer |
MAGNETO TYPE: | | Flywheel Electronic |
CARBURETOR: | | Walbro WT or Zama |
MAJOR REPAIR KIT: | | Walbro K10-WAT
ZAMA |
MINOR REPAIR KIT: | | Walbro D10-WAT
ZAMA |
AIR FILTER SYSTEM: | | Nylon mesh cartridge |
STARTER TYPE: | | Homelite automatic rewind |
OIL PUMP: | | Automatic |
MAXIMUM ENGINE RPM: | | 10,500 to 11,000 no load |
IDLE RPM: | | 2,800 to 3,000 |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.015 in. (0.38 mm) |
SPARK PLUG TYPE: | | Champion DJ7Y |
SPARK PLUG GAP: | | 0.025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller |
FUEL TANK CAPACITY: | | 16 oz. (473 ml) |
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., 0.050 gauge |
CHAIN TYPE: | | Carlton Chisel A1LM |
BAR MOUNT PATTERN: | | 14 link |
SHORTEST GUIDE BAR SUPPLIED: | | 16 in. (40 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 24 in. (61 cm) |
COLOUR SCHEME: | | Homelite Red |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |