Husqvarna 257 XP Workshop Manual Repair
Husqvarna 257 XP Workshop Service Manual for the Repair and service of the Husqvarna 257 XP 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 257 XP chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.
Husqvarna 257 XP 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 257 XP Chainsaw Specifications
56.5, 3.4 hp
3.2 Kw of power
Dry weight of 12.1 lbs
14,000 max RPMs
2,700 idle RPMs
1.81″/46 mm cylinder bore
1.34/34 mm piston stroke
Champion RCJ7Y spark plug
101 dB(A) sound pressure for operator
Read the Husqvarna 257 XP Workshop Manual for more chainsaw specs.
The Husky 257XP has a 3.4 hp engine and is built on the same chassis as the very similar, but non-XP, Husqvarna 359. The Husqvarna 357XP is a 56.5cc chainsaw that was produced between the years 2003 and 2011. The 357XP was replaced in 2011 by the 562XP chainsaw. The 357 was sold with a 16, 18, or 20″ bar, and it’s recommended for use with 13 – 20″ bars.
It’s the perfect all-around saw for everything from felling, to limbing and to cross-cutting.
357 XP features:
- Low vibe for smoother handling
- Adjustable oil pump for changing the flow in different seasons/climates
- Magnesium crankcase that withstands higher RPMs and tougher use
- Air injection and centrifugal air cleaning system improves engine life
- Three piece crankshaft makes it more durable
- Smart Start feature reduces starter cord resistance by up to 40%
- Ergonomic front handle offset at 7 degrees to reduce fatigue
Husqvarna 257 XP Workshop Manual PDF
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