MANUFACTURED BY: |  | SOLO KLEINMOTOREN GmbH |
 | | STUTTGART, GERMANY |
SERIES OR ASSEMBLY NUMBER: | | 638AVK |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1984 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 38cc (2.32 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 42mm (1.653 in.) |
PISTON STROKE: | | 28mm (1.102 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Chrome plated aluminum |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | |
WEIGHT: | | 5.5kg (12 lbs.) with 35cm (14 in.) bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium |
MAGNETO TYPE: | | Electronic |
CARBURETOR: | | Walbro HDC-10 |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Nylon mesh element |
STARTER TYPE: | | SOLO automatic rewind |
OIL PUMP: | | Automatic, gear driven piston pump |
MAXIMUM ENGINE RPM: | | |
IDLE RPM: | | |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.25 mm (0.010 in.) |
SPARK PLUG TYPE: | | Bosch WKA175T6, Champion RCJ6 |
SPARK PLUG GAP: | | 0.5 mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 40:1 |
RECOMMENDED FUEL OCTANE: | | Regular grade |
MIX OIL SPECIFICATION: | | SOLO mix oil |
CHAIN PITCH: | | 3/8 in. low profile |
CHAIN TYPE: | | Oregon 91SG |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 35cm (14 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40cm (16 in.) |
COLOUR SCHEME: | | SOLO Red and Black |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |