MANUFACTURED BY: |  | STIHL ANDREAS MASCHINENFABRIK |
 | | STUTTGART, GERMANY |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1999 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 121.6 ccm (7.42 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 60 mm with 2 ring piston, 1.2 mm thick rings |
PISTON STROKE: | | 43 mm |
PISTON RING THICKNESS: | | 1.5 mm, 2 rings used |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston Ported |
MANUFACTURER ADVERTISED H.P.: | | 8.5 B.H.P. |
WEIGHT: | | 10.1 kg (22.2 LBS.) powerhead only |
OPERATOR CONFIGURATION: | | One Man |
HANDLEBAR SYSTEM: | | Anti-Vibration |
CHAIN BRAKE: | | Inertia activated |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium, injection molded polymer |
MAGNETO TYPE: | | Electronic |
CARBURETOR: | | Tillotson HT-12A |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Paper filter element |
STARTER TYPE: | | Stihl automatic rewind |
OIL PUMP: | | Automatic adjustable, tank capacity 700 ml (23.7 fl. oz.) |
MAXIMUM ENGINE RPM: | | 12,000 |
IDLE RPM: | | 2,700 |
IGNITION TIMING: | | Fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | |
SPARK PLUG TYPE: | | NGK BPMR7A, Bosch WSR6F |
SPARK PLUG GAP: | | 0.5 mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 1300 ml (44 fl. oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | Regular automotive. ASPEN2 premixed Alkylate fuel is best |
MIX OIL SPECIFICATION: | | Stihl mix oil. ASPEN synthetic is best |
CHAIN PITCH: | | 3/8 in. or .404 in. |
CHAIN TYPE: | | RSC3 |
BAR MOUNT PATTERN: | | 07 link |
SHORTEST GUIDE BAR SUPPLIED: | | 53 cm (21 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 105 cm (41 in.) |
COLOUR SCHEME: | | |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |