MANUFACTURED BY: |  | ECHO (KIORITZ CORPORATION) |
 | | YOKOSUKA, MORIOKA Japan |
SERIES OR ASSEMBLY NUMBER: | | CS-351, CS-351VL |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1980 |
YEAR DISCONTINUED: | | 1983 |
ENGINE DISPLACEMENT: | | 35.2 ccm (2.14 cu. in.) |
NUMBER OF CYLINDERS: | | Air cooled, two-stroke, single cylinder gasoline engine |
CYLINDER BORE: | | 40 mm (1.57 in.) |
PISTON STROKE: | | 28 mm (1.10 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with CHROME plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 5 kg (11 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal, engages at 5,500 to 8,500 rpm |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast MAGNESIUM |
MAGNETO TYPE: | | Flywheel magneto with breaker points |
CARBURETOR: | | Walbro WA-25 |
MAJOR REPAIR KIT: | | K10-WAT |
MINOR REPAIR KIT: | | D10-WAT |
AIR FILTER SYSTEM: | | Wire screen element |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic |
MAXIMUM ENGINE RPM: | | 11,000 to 12,000 |
IDLE RPM: | | 2,500 to 2,800 |
IGNITION TIMING: | | 30 degrees before TDC |
BREAKER POINT SETTING: | | 0.3 to 0.4 mm (0.012 to 0.016 in.) |
FLYWHEEL/COIL AIR GAP: | | 0.3 to 0.4 mm (0.012 to 0.016 in.) |
SPARK PLUG TYPE: | | Champion CJ8, NGK BM6A |
SPARK PLUG GAP: | | 0.61 to 0.71 mm (0.024 to 0.028 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 380 ml (13 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/FC, FD
ASPEN Synthetic mix oil is best |
CHAIN PITCH: | | 1/4 in., later 3/8 in. low profile |
CHAIN TYPE: | | Oregon 25AP, 91S, Carlton E1MC, N1C |
BAR MOUNT PATTERN: | | 03 link |
SHORTEST GUIDE BAR SUPPLIED: | | 30 cm (12 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40 cm (16 in.) |
COLOUR SCHEME: | | ECHO Orange enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |