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Model: 550

MANUFACTURED BY:
SHIN-DAIWA KOGYO LTD.
HIROSHIMA, JAPAN
SERIES OR ASSEMBLY NUMBER:
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
47.9 ccm (2.9 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
45 mm
PISTON STROKE:
36 mm
PISTON RING THICKNESS:
2 rings used
CYLINDER TYPE:
Aluminum with beaded Chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
4.0 hp
WEIGHT:
5.8 kg (12.7 lbs.)
OPERATOR CONFIGURATION:
One Man
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Manual
CLUTCH:
Centrifugal metal 3 shoe
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast Magnesium, injection molded Polymer
MAGNETO TYPE:
CDI electronic flywheel type
CARBURETOR:
Walbro HDA-50A
MAJOR REPAIR KIT:
K25-HDA
MINOR REPAIR KIT:
D22-HDA replaces D10-HDA
AIR FILTER SYSTEM:
Stainless steel mesh element
STARTER TYPE:
Automatic rewind. 4 mm cord X 950 mm
OIL PUMP:
Clutch driven piston pump type, adjustable
MAXIMUM ENGINE RPM:
12,000 free with bar and chain installed
IDLE RPM:
2,800
IGNITION TIMING:
Fixed 28 degrees BTDC
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
0.50 to 0.55 mm (0.020 to 0.022 in.)
SPARK PLUG TYPE:
Champion CJ6Y, NGK BPM7A
SPARK PLUG GAP:
0.6 mm (0.024 in.)
CRANKSHAFT MAIN BEARINGS:
Ball 6202
FUEL TANK CAPACITY:
600 ml (20.3 fl. oz.)
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
Automotive 89 octane. ASPEN2 pre-mixed Alkylate
fuel is best
MIX OIL SPECIFICATION:
Shindaiwa premium oil. ASPEN synthetic mix oil is best
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
Oreon 72LG
BAR MOUNT PATTERN:
09 link
SHORTEST GUIDE BAR SUPPLIED:
40 cm (16 in.)
LONGEST GUIDE BAR SUPPLIED:
50 cm (20 in.)
COLOUR SCHEME:
Shindaiwa RED
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:




 

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