This is what it sais about the 041 ave super
MANUFACTURED BY: STIHL ANDREAS MASCHINENFABRIK
STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER: 1110
YEAR INTRODUCED: 1977
YEAR DISCONTINUED:
ENGINE DISPLACEMENT: 72 ccm (4.4 cu. in.)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 48 mm (1.89 in.)
PISTON STROKE: 40 mm (1.57 in.)
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.:
WEIGHT : 8.1 kg with 33 cm 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: Thyristor electronic system
CARBURETOR: Tillotson HS-138B series
MAJOR REPAIR KIT: RK-21HS
MINOR REPAIR KIT: DG-3HS
AIR FILTER SYSTEM: Flocked wire mesh flat element
STARTER TYPE: Stihl automatic rewind
OIL PUMP: Automatic
OPERATING RPM:
IGNITION TIMING: 2.5 mm (0.099 in.) before TDC
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.2 to 0.3 mm (0.008 to 0.012 in.)
SPARK PLUG TYPE: Bosch WSR6F, Champion RCJ7Y
SPARK PLUG GAP: 0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 620 ml (21 fl. oz.)
FUEL OIL RATIO: 40:1
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil
CHAIN PITCH: 3/8 (9.32 mm)
CHAIN TYPE: Stihl
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED: 33 cm (13 in.)
LONGEST GUIDE BAR SUPPLIED: 71cm (28 in.)
COLOUR SCHEME: Grey with Red top