MANUFACTURED BY: | | SHIN-DAIWA KOGYO LTD. |
| | HIROSHIMA, JAPAN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 37.7 ccm (2.3 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 40 mm |
PISTON STROKE: | | 30 mm |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with beaded Chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 2.5 |
WEIGHT: | | 4.1 kg (9 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal, metal 3 shoe |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Injection molded Polymer, die cast Magnseium |
MAGNETO TYPE: | | Flywheel, Transistor "TCI" type |
CARBURETOR: | | Walbro WT-384 |
MAJOR REPAIR KIT: | | K20-WAT |
MINOR REPAIR KIT: | | D20-WAT |
AIR FILTER SYSTEM: | | Nylon mesh element |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic piston pump, adjustable, tank capacity 250 ml
(8.5 fl. oz.) |
MAXIMUM ENGINE RPM: | | 13,500 no load with bar and chain installed |
IDLE RPM: | | 3,000 |
IGNITION TIMING: | | 28 degrees BTDC |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.5 mm (0.020 in.) |
SPARK PLUG TYPE: | | NGK BPMR7A |
SPARK PLUG GAP: | | 0.6 mm (0.024 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball, 6201 |
FUEL TANK CAPACITY: | | 400 ml (13.5 oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | 87 octane unleaded. ASPEN2 pre-mixed Alkylate fuel
is best |
MIX OIL SPECIFICATION: | | ASPEN synthetic oil is best. |
CHAIN PITCH: | | .325 in., optional 3/8 in. Low Profile |
CHAIN TYPE: | | Oregon 33SL |
BAR MOUNT PATTERN: | | 03 link |
SHORTEST GUIDE BAR SUPPLIED: | | 40 cm (16 in.) |
LONGEST GUIDE BAR SUPPLIED: | | |
COLOUR SCHEME: | | Shindaiwa Red |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |