MANUFACTURED BY: |  | SHINDAIWA, YAMABIKO CORP |
 | | OHME, TOKUO, JAPAN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 28.5 cc (1.74 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 36 mm |
PISTON STROKE: | | 28 mm |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 1.7 |
WEIGHT: | | 4.0 kg (8.8 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Injection molded polymer, die cast magnesium |
MAGNETO TYPE: | | Transistor "TCI" type |
CARBURETOR: | | Walbro WYM-4 |
MAJOR REPAIR KIT: | | K20-WYMP |
MINOR REPAIR KIT: | | D20-WYMP |
AIR FILTER SYSTEM: | | Stainless steel screen |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic piston pump |
MAXIMUM ENGINE RPM: | | 13,500 no load |
IDLE RPM: | | 2,800 |
IGNITION TIMING: | | 28 degrees before TDC |
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: | | 6201 ball type |
FUEL TANK CAPACITY: | | 340 ml (11.5 fl. oz.) |
FUEL OIL RATIO: | | 40:1 with Shindaiwa oil |
RECOMMENDED FUEL OCTANE: | | Regular 87 minimum |
MIX OIL SPECIFICATION: | | Shindaiwa Premium 2-cycle oil |
CHAIN PITCH: | | 3/8 in. Low Profile |
CHAIN TYPE: | | Oregon 91SG |
BAR MOUNT PATTERN: | | 03 link |
SHORTEST GUIDE BAR SUPPLIED: | | 30 cm (12in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40 cm (16 in.) |
COLOUR SCHEME: | | Shindaiwa Red |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |