Husqvarna 66 Workshop Manual

Husqvarna 66 Workshop Manual Repair

Husqvarna 66 Workshop Manual for the Repair and service of the Husqvarna 66 chainsaw. The PDF workshop service manual has accurate, easy to understand information and diagrams to help repair and service the chainsaw. Service Information to help you to troubleshoot, repair and fix the Husqvarna 66 chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.

Husqvarna 66 Workshop Manual Contents

Contents, Introduction, Safety Regulations, Symbols, Technical data, Service tools, Service data, Safety equipment, Starter, Electrical system, Centrifugal clutch, Lubrication system, Carburetor, Tank unit, Anti-vibration system, Piston and cylinder, Crankcase and crankshaft, Troubleshooting, Repair Instructions.

Carburetor – General Chainsaw Adjustment

Adjusting the carburettor involves adjusting the engine to the local conditions e.g. climate, altitude, fuel and type of two-stroke oil. The carburettor is equipped with three adjustment options.
L = Low speed jet
H = High speed jet
T = Idling adjustment screw

The L and H jets adjust the fuel flow to match the airflow that the throttle valve opening allows. Turning them clockwise makes the fuel/air mixture weaker (less fuel in relation to the amount of air) and turning them anti-clockwise makes the fuel/air mixture richer. A weak mixture increases the engine speed and a rich mixture decreases the engine speed. The T screw controls the throttle position when idling. Turning the T screw clockwise gives faster idling; turning it anti-clockwise lowers idling speed (see manual for complete guide).

See the complete service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF downloads. Also the repair and service articles available on this website for more information on how to service, repair and find parts for the chainsaw.

Husqvarna 66 Chainsaw Specifications

YEAR INTRODUCED: 1980
ENGINE DISPLACEMENT: 66.7cc (4.1 cu. in.)
CYLINDER BORE: 50mm (1.97 in.)
PISTON STROKE: 34mm (1.34 in.)
CYLINDER TYPE: aluminum with chrome plated bore
INTAKE METHOD: Piston ported
H.P.: 4.2 (3.1 kW)
WEIGHT : 13.5 lbs., powerhead only
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: Inertia activated
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Electronic
CARBURETOR: Tillotson HS-224A, B series
AIR FILTER SYSTEM: Nylon mesh cartridge
STARTER TYPE: Husqvarna automatic rewind
OIL PUMP: Automatic, adjustable
IGNITION TIMING: fixed
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.3 mm (0.012 in.)
SPARK PLUG TYPE: Bosch WS7F
SPARK PLUG GAP: 0.5mm (0.020 in.)
FUEL TANK CAPACITY: 25.4 fl. oz.
FUEL OIL RATIO: 40:1
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Two-stroke chain saw mix oil, 50:1 with Husqvarna mix oil
CHAIN PITCH: 3/8 in.
CHAIN TYPE:
BAR MOUNT PATTERN: 17 link
SHORTEST GUIDE BAR SUPPLIED: 40cm (16 in.)
LONGEST GUIDE BAR SUPPLIED: 71cm (28 in.)

Read the Husqvarna 66 Workshop Manual for more chainsaw specs.

The Husky 66 chainsaw is 66.7cc that can use a up to a 34″bar, now considered a collectors vintage chainsaw.

Husqvarna 66 Workshop Manual PDF

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