MANUFACTURED BY: |  | ECHO (KIORITZ CORPORATION) |
 | | YOKOSUKA, MORIOKA Japan |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | |
YEAR DISCONTINUED: | | current in 2023 |
ENGINE DISPLACEMENT: | | 73.5 ccm (4.49 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 51 mm |
PISTON STROKE: | | 36 mm |
PISTON RING THICKNESS: | | 2 rings used |
CYLINDER TYPE: | | Aluminum with CHROME plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | |
WEIGHT: | | 7.0 kg powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-Vibration |
CHAIN BRAKE: | | Inertia activated |
CLUTCH: | | Centrifugal, 3 metal shoes, engages at 4,200 rpm |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Injection molded polymer, die cast MAGNESIUM alloy |
MAGNETO TYPE: | | CDI Electronic, flywheel type |
CARBURETOR: | | YZ0009 |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Pleated cartridge |
STARTER TYPE: | | ECHO automatic rewind |
OIL PUMP: | | Automatic, gear driven, adjustable |
MAXIMUM ENGINE RPM: | | 13,000 |
IDLE RPM: | | 3,000 |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.3 to 0.4 mm |
SPARK PLUG TYPE: | | NGK BPMR8Y |
SPARK PLUG GAP: | | 0.4 to 0.5 mm (0.016 to 0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball 6202 |
FUEL TANK CAPACITY: | | 801 ml (27.1 fl. oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | 89 |
MIX OIL SPECIFICATION: | | JASO FC, FD |
CHAIN PITCH: | | 3/8 in., 0.050 gauge |
CHAIN TYPE: | | Carlton A1LM |
BAR MOUNT PATTERN: | | 10 link |
SHORTEST GUIDE BAR SUPPLIED: | | 50 cm (20 in) |
LONGEST GUIDE BAR SUPPLIED: | | 81 cm (32 in.) |
COLOUR SCHEME: | | |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |