Husqvarna 51 Workshop Manual Repair
Husqvarna 51 Workshop Manual for the Husqvarna chainsaw. Repair and service the 51 with this manual. The manual has diagrams and accurate information as used by mechanics and repair shops to troubleshoot and repair the chainsaw. View free page images online or download a full PDF that you can print or view on any suitable device.
The manuals have plenty of pictures and diagrams to help with repairs and servicing. May be used as a guide for other models as they may share key components such as motors.
Husqvarna 51 Workshop Manual Contents
The index may vary with model number
Introduction, Specifications, Troubleshooting, Attachments, Air Filter, Carburetor, Crankcase, Clutch, Engine, Ignition, Starter, Servicing, Controls, Fuel System, Electrics, Special Tools.
This PDF manual helps you find the information you need quickly and easily. it provides a detailed description of for troubleshooting, repair and testing of the chain saw.
Husqvarna 51 Chainsaw Specifications
YEAR INTRODUCED: 1990
ENGINE DISPLACEMENT: 51cc (3.1 cu. in.)
CYLINDER BORE: 45 mm (1.77 in.)
PISTON STROKE: 32 mm (1.26 in.)
CYLINDER TYPE: Aluminum with a chrome-plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.: 3.1 hp (2.3kW)
WEIGHT: 5.2kg (11.4 lbs.) powerhead only
CHAIN BRAKE: Inertia activated
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Injection molded plastic, die-cast magnesium
MAGNETO TYPE: Electronic Electrolux ET
CARBURETOR: Walbro WT-170 series, ZAMA C1Q-EL6, C1Q-EL7
MAJOR REPAIR KIT: K20-WAT for Walbro, RB-45 for ZAMA
MINOR REPAIR KIT: D10-WAT for Walbro, GND-33 for ZAMA
AIR FILTER SYSTEM: Nylon mesh cartridge
STARTER TYPE: Automatic rewind
OIL PUMP: Automatic
MAXIMUM ENGINE RPM: 12,500 max free after break in, 9,000 under load.
IDLE RPM: 2,500
IGNITION TIMING: fixed
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.30 mm (0.012 in.)
SPARK PLUG TYPE: Bosch WSR7F/WS7F, NGK BPMR7A, Champion RCJ7Y
SPARK PLUG GAP: 0.50 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 600ml (20.2 fl. oz.)
FUEL OIL RATIO: 50:1
RECOMMENDED FUEL OCTANE: Regular grade
MIX OIL SPECIFICATION: Electrolux approved oil, Husqvarna mix oil
SHORTEST GUIDE BAR SUPPLIED: 33cm (13 in.)
LONGEST GUIDE BAR SUPPLIED: 51cm (20 in.)
Husqvarna 51 Workshop Manual Diagrams
The Husqvarna 51 chainsaw is a single-person chainsaw sporting a 3.1 horsepower two-cycle engine with an Electrolux ignition system and Zama carburetor. It features rugged construction with an exterior made of plastic and die-cast magnesium and has vibration resisting handlebars to make it easier to hold and use.
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