MANUFACTURED BY: |  | ECHO (KIORITZ CORPORATION) |
 | | YOKOSUKA, MORIOKA Japan |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1985 |
YEAR DISCONTINUED: | | 2014 |
ENGINE DISPLACEMENT: | | 80.7 ccm (4.925 cu. in.) |
NUMBER OF CYLINDERS: | | Air cooled, two-stroke, single cylinder gasoline engine |
CYLINDER BORE: | | 52 mm (2.047 in.) |
PISTON STROKE: | | 38 mm (1.496 in.) |
PISTON RING THICKNESS: | | 2 rings used |
CYLINDER TYPE: | | Aluminum with CHROME plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 7.5 kg (16.3 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration, 6 rubber isolators |
CHAIN BRAKE: | | Inertia activated |
CLUTCH: | | Centrifugal, 3 metal shoes, engages 3,500 to 4,000 rpm |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast MAGNESIUM |
MAGNETO TYPE: | | Electronic |
CARBURETOR: | | Walbro HDA-153B |
MAJOR REPAIR KIT: | | K10-HDA |
MINOR REPAIR KIT: | | D10-HDA |
AIR FILTER SYSTEM: | | Nylon mesh cartridge |
STARTER TYPE: | | Automatic rewind. replacement cord is 4 mm X 950 mm |
OIL PUMP: | | Automatic worm gear driven with manual override
tank capacity 400 ml (13.5 fl. oz.) |
MAXIMUM ENGINE RPM: | | 11,500 to 12,500 |
IDLE RPM: | | 2,800 to 3,000 |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.35 mm (0.014 in.) |
SPARK PLUG TYPE: | | Champion RCJ6Y |
SPARK PLUG GAP: | | 0.6 to 0.7 mm (0.024 to 0.028 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball, 6203C3 |
FUEL TANK CAPACITY: | | 820 ml (27.7 fl. oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | 89 regular automotive.
ASPEN2 pre-mixed Alkylate fuel is
best at 93 octane, no ethanol, has very long shelf life |
MIX OIL SPECIFICATION: | | ECHO two cycle. ISO-L-EDG. Jaso M345/FD
ASPEN Synthetic mix oil is best |
CHAIN PITCH: | | 3/8 in., 0.050 gauge |
CHAIN TYPE: | | Carlton A1LM or A1EP |
BAR MOUNT PATTERN: | | 10 link |
SHORTEST GUIDE BAR SUPPLIED: | | 50 cm (20 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 91 cm (36 in.) |
COLOUR SCHEME: | | Orange with black air filter cover and handle grips
later series grey and black. |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |