MANUFACTURED BY: |  | ECHO (KIORITZ CORPORATION) |
 | | YOKOSUKA, MORIOKA Japan |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1971 |
YEAR DISCONTINUED: | | 1983 |
ENGINE DISPLACEMENT: | | 30.1 ccm (1.83 cu. in.) |
NUMBER OF CYLINDERS: | | Air cooled, two-stroke, single cylinder gasoline engine |
CYLINDER BORE: | | 37 mm (1.46 in.) |
PISTON STROKE: | | 28 mm (1.10 in.) |
PISTON RING THICKNESS: | | 2 rings |
CYLINDER TYPE: | | Aluminum with CHROME plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 4.5 kg (9.9 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none on early version, mechanical on later version |
CLUTCH: | | Centrifugal, 3 metal shoes |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast MAGNESIUM |
MAGNETO TYPE: | | Flywheel breaker point type |
CARBURETOR: | | Tillotson HU-25A
Walbro WA-5 |
MAJOR REPAIR KIT: | | RK-14HU for HU-25A
K10-WAT for WA-5 |
MINOR REPAIR KIT: | | DG-2HU for HU-25A
D10-WAT for WA-5 |
AIR FILTER SYSTEM: | | Cellulose fiber element |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic, worm gear driven |
MAXIMUM ENGINE RPM: | | |
IDLE RPM: | | |
IGNITION TIMING: | | 30 degrees BTDC |
BREAKER POINT SETTING: | | 0.3 to 0.4 mm (0.012 to 0.016 in.) |
FLYWHEEL/COIL AIR GAP: | | 0.30 to 0.40 mm (0.012 to 0.016 in.) |
SPARK PLUG TYPE: | | NGK BM6A |
SPARK PLUG GAP: | | 0.63 mm (0.025 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 330 ml (11 fl. oz.) |
FUEL OIL RATIO: | | 20:1 |
RECOMMENDED FUEL OCTANE: | | 87 Automotive. ASPEN2 pre-mixed Alkylate fuel is best
at 93 octane, no ethanol and long shelf life |
MIX OIL SPECIFICATION: | | ECHO two cycle. ISO-L-EDG. Jaso M345/FC, FD
ASPEN Synthetic mix oil is best |
CHAIN PITCH: | | 1/4 in. |
CHAIN TYPE: | | Carltin E1MC |
BAR MOUNT PATTERN: | | 03 link |
SHORTEST GUIDE BAR SUPPLIED: | | 30 cm (12 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40 cm (16 in.) |
COLOUR SCHEME: | | Orange enamel with black |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |