STIHL 031 AV.



MANUFACTURED BY: STIHL ANDREAS MASCHINENFABRIK STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER: 1113 YEAR INTRODUCED: YEAR DISCONTINUED: ENGINE DISPLACEMENT: 48 ccm (2.93 cu. in.) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 44 mm (1.73 in.) PISTON STROKE: 32 mm (1.26 in.) CYLINDER TYPE: Aluminum with chrome plated bore INTAKE METHOD: Piston ported MANUFACTURER ADVERTISED H.P.: WEIGHT : 6.6 kg (14.5 lbs.) powerhead only OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: Anti-vibration CHAIN BRAKE: Optional CLUTCH: Centrifugal DRIVE TYPE: Direct CONSTRUCTION: Die cast magnesium MAGNETO TYPE: Electronic CARBURETOR: Tillotson HU-3G series MAJOR REPAIR KIT: RK-14HU MINOR REPAIR KIT: DG-2HU AIR FILTER SYSTEM: Nylon mesh cartridge STARTER TYPE: Automatic rewind OIL PUMP: Automatic OPERATING RPM: IGNITION TIMING: 2.0 to 2.3 mm (0.008 to 0.009 in.) before TDC BREAKER POINT SETTING: none FLYWHEEL/COIL AIR GAP: SPARK PLUG TYPE: Bosch WSR6F, Champion RCJ7Y SPARK PLUG GAP: 0.51 mm (0.020 in.) CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: 540 ml (18.25 fl. oz.) FUEL OIL RATIO: 40:1 with Stihl oil RECOMMENDED FUEL OCTANE: Regular grade MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil CHAIN PITCH: 3/8 in. CHAIN TYPE: Stihl BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 35 cm (14 in.) LONGEST GUIDE BAR SUPPLIED: 50 cm (20 in.) COLOUR SCHEME: Grey with Orange top cover