STIHL ANDREAS MASCHINENFABRIKSTUTTGART, GERMANY

SERIES OR ASSEMBLY NUMBER:

1113

SERIAL NUMBER PREFIX: 

YEAR INTRODUCED:

1978

YEAR DISCONTINUED:

1985

ENGINE DISPLACEMENT:

51 ccm (3.11 cu. in.)

NUMBER OF CYLINDERS:

1

CYLINDER BORE:

45mm (1.77 in.)

PISTON STROKE:

32mm (1.26 in.)

PISTON RING THICKNESS: 

1.5 mm, 2 rings used

CYLINDER TYPE:

Aluminum with chrome plated bore

INTAKE METHOD:

Piston ported

MANUFACTURER ADVERTISED H.P.:

3.4

WEIGHT:

6.9kg with 33cm bar & chain
15.2 lbs. with 13 in. bar & chain

OPERATOR CONFIGURATION:

One Man operation

HANDLEBAR SYSTEM:

Anti-vibration

CHAIN BRAKE:

Optional

CLUTCH:

Centrifugal

DRIVE TYPE:

Direct

CONSTRUCTION:

Die cast magnesium

MAGNETO TYPE:

Bosch

CARBURETOR:

Tillotson HU-51A, B

MAJOR REPAIR KIT:

RK-14HU for A
RK-15HU for B

MINOR REPAIR KIT:

DG-2HU

AIR FILTER SYSTEM:

Flocked wire screen element

STARTER TYPE:

Stihl automatic rewind

OIL PUMP:

Automatic

MAXIMUM ENGINE RPM:

IDLE RPM:

IGNITION TIMING:

2.3mm (0.09 in.) before TDC

BREAKER POINT SETTING:

0.35 to 0.40mm (0.014 to 0.016 in.) 

FLYWHEEL/COIL AIR GAP:

SPARK PLUG TYPE:

Bosch WSR6F

SPARK PLUG GAP:

0.5mm (0.020 in.)

CRANKSHAFT MAIN BEARINGS:

Ball

FUEL TANK CAPACITY:

540ml

FUEL OIL RATIO:

40:1 with Stihl oil

RECOMMENDED FUEL OCTANE:

Regular

MIX OIL SPECIFICATION:

Stihl two-cycle chain saw mix oil

CHAIN PITCH:

3/8 in., 0.050 gauge

CHAIN TYPE:

Stihl

BAR MOUNT PATTERN:

31 link

SHORTEST GUIDE BAR SUPPLIED:

35cm (14 in.)

LONGEST GUIDE BAR SUPPLIED:

50cm (20 in.)

COLOUR SCHEME:

Grey with Red top