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Model: 261

MANUFACTURED BY:
OLYMPYK
REGGIO EMILIA, ITALY
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
61cc (3.8 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
47mm (1.85 in.)
PISTON STROKE:
35mm (1.38 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with chrome impregnated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
7.5 SAE
WEIGHT:
8.2kg with 45cm bar & chain
18 lbs. with 18 in. bar & chain
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
CHAIN BRAKE:
CLUTCH:
Centrifugal, engages @ 3000
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
CEV, points type
CARBURETOR:
Tillotson HS-128B
MAJOR REPAIR KIT:
RK-23HS
MINOR REPAIR KIT:
DG-5HS/T
AIR FILTER SYSTEM:
Flocked wire screen
STARTER TYPE:
Automatic rewind
OIL PUMP:
Automatic, cam actuated piston type, adjustable
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
2.6mm (0.102 in.) before TDC
BREAKER POINT SETTING:
0.45mm (0.017 in.)
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE:
Bosch WS7F, Champion CJ7Y
SPARK PLUG GAP:
0.51mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
1 litre (35.18 Imp. Oz.)
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
Regular, minimum 90
MIX OIL SPECIFICATION:
Two-stroke chain saw mix oil
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
Oregon
BAR MOUNT PATTERN:
18 link
SHORTEST GUIDE BAR SUPPLIED:
16 in. (40cm)
LONGEST GUIDE BAR SUPPLIED:
23 in. (58cm)
COLOUR SCHEME:
Orange with Black handles & top cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:



 

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