MANUFACTURED BY: |  | ECHO (KIORITZ CORPORATION) |
 | | YOKOSUKA, MORIOKA Japan |
SERIES OR ASSEMBLY NUMBER: | | CS-452, CS-452VL |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1975 |
YEAR DISCONTINUED: | | 1983 |
ENGINE DISPLACEMENT: | | 44.3 ccm (2.69 cu. in.) |
NUMBER OF CYLINDERS: | | Air cooled, two-stroke, single cylinder gasoline engine |
CYLINDER BORE: | | 42 mm (1.65 in.) |
PISTON STROKE: | | 32 mm (1.26 in.) |
PISTON RING THICKNESS: | | 2 rings |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 5.6 kg (12.3 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal, 3 metal shoes |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium, injection molded polymer |
MAGNETO TYPE: | | Flywheel magneto |
CARBURETOR: | | Tillotson HU-9B
Walbro WA |
MAJOR REPAIR KIT: | | RK-14HU for Tillotson
K10-WAT for Walbro |
MINOR REPAIR KIT: | | DG-2HU for Tillotson
D10-WAT for Walbro |
AIR FILTER SYSTEM: | | Nylon mesh element |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | 9,500 to 10,500 |
IDLE RPM: | | 2,500 to 2,800 |
IGNITION TIMING: | | 30 degrees before TDC |
BREAKER POINT SETTING: | | 0.30 to 0.40 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, Champion CJ8 |
SPARK PLUG GAP: | | 0.61 to 0.71 mm (0.024 to 0.028 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball, 6202 |
FUEL TANK CAPACITY: | | 500 ml (16.9 fl. oz.) |
FUEL OIL RATIO: | | 50:1 with ECHO oil, otherwise 32:1 |
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: | | 40 cm (16 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 60 cm (24 in.) |
COLOUR SCHEME: | | ECHO Orange enamel with Black |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |