Chainsaw Repair

Chainsaw Collectors has some info  http://www.chainsawcollectors.se/phpbb3/viewtopic.php?t=28

Acres  http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/b11c1568e7fa598a88256b5e001843c7?OpenDocument

MANUFACTURED BY:
      SOLO KLEINMOTOREN GmbH
      STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER:
      
YEAR INTRODUCED:
      
YEAR DISCONTINUED:
      1971
ENGINE DISPLACEMENT:
      67cc (4.1 cu. in.)
NUMBER OF CYLINDERS:
      1
CYLINDER BORE:
      50mm (1.968 in.)
PISTON STROKE:
      34mm (1.338 in.)
CYLINDER TYPE:
      Aluminum with chrome plated bore
INTAKE METHOD:
      Piston ported
MANUFACTURER ADVERTISED H.P.:
      4 DIN
WEIGHT:
      6.5kg with 40cm bar & chain
OPERATOR CONFIGURATION:
      One Man operation
HANDLEBAR SYSTEM:
      Rigid
CHAIN BRAKE:
      none
CLUTCH:
      Centrifugal
DRIVE TYPE:
      Direct
CONSTRUCTION:
      Die cast magnesium
MAGNETO TYPE:
      Bosch
CARBURETOR:
      Tillotson HS-52A
MAJOR REPAIR KIT:
      RK-23HS
MINOR REPAIR KIT:
      DG-5HS/T
AIR FILTER SYSTEM:
      
STARTER TYPE:
      Solo automatic rewind
OIL PUMP:
      Automatic
MAXIMUM ENGINE RPM:
      7,000
IDLE RPM:
      
IGNITION TIMING:
      Position is fixed
BREAKER POINT SETTING:
      0.4 mm (0.016 in.)
FLYWHEEL/COIL AIR GAP:
      position is fixed
SPARK PLUG TYPE:
      Champion J8J
SPARK PLUG GAP:
      0.025 in.
CRANKSHAFT MAIN BEARINGS:
      Ball on flywheel end, caged needle roller on clutch end
FUEL TANK CAPACITY:
      600ml
FUEL OIL RATIO:
      25:1 after break in period of 20:1
RECOMMENDED FUEL OCTANE:
      Regular grade
MIX OIL SPECIFICATION:
      Two-cycle mix oil
CHAIN PITCH:
      3/8 in.
CHAIN TYPE:
      
BAR MOUNT PATTERN:
      
SHORTEST GUIDE BAR SUPPLIED:
      35cm (14 in.)
LONGEST GUIDE BAR SUPPLIED:
      60cm (24 in.)
COLOUR SCHEME:
      White with red accents
PAINT CODES: