Husqvarna 390 XP Workshop Manual Repair
Husqvarna 390 XP Workshop Service Manual for the Husqvarna 390 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 390 XP chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.
Husqvarna 390 XP Workshop Service 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 390 XP Chainsaw Specifications
Length 32″ (80cm)
Pitch 3/8″ (.375″)
Gauge .063″ (1.6mm)
Drive Link Count 105 Drive Links
Cylinder Displacement 87.9cc
Power Output 6.5 HP
Idling Speed 2700 RPM
Maximum Power Speed 9600 RPM
Cylinder Bore 2.17″
Cylinder Stroke 1.5″
Ignition System SEM AM50
Ignition Module Air Gap 0.01
Spark Plug Champion RCJ 7Y
Electrode Gap 0.02″
Carburetor Model Name WJ 116
Fuel Tank Volume 1.9 US Pint
Oil Tank Volume 1.06 US Pint
Oil Pump Type Adjustable Flow
Oil Pump Capacity 6-24 ml/min
Chainsaw Bar 32″ X-Tough RSN Chainsaw Bar (105 Drive Links) XTR-383-105
Chain Pitch/Gauge/Drive Link Count 3/8″ (.375)/.063/ 105 dl (H83-105)
Chain Speed at Max Power 70.21 fts
Sound Pressure Level at Operators Ear 104.1 dB(A)
Weight Without Bar and Chain 15.65 lbs
Read the Husqvarna 390 XP Workshop Manual for more chainsaw specs.
Husky 390 XP powerful saw. Performance and vibration damping are dimensioned for sawing jobs that require longer cutting equipment. Good ergonomics and comfort make it easy to handle despite its size and high power. Smart Start facilitates starting and rubber-mounted carburettor boosts durability and smooths operation.
Cylinder displacement: 88 cc
Recommended bar length, max: 28 in
Weight (excl. cutting equipment): 16.1 lbs
WARNING: This 390 XP chainsaw chain may be capable of kickback that could result in serious injury to the chainsaw operator or bystanders. Do not use this chain unless you have experience and specialized training for dealing with kickback.
Husqvarna 390 XP Workshop Manual PDF