Echo CS-3900 Parts List Repair
Echo CS-3900 Parts List for the Echo chainsaw. Repair and identify all chainsaw parts for the Echo 3900 (CS-3900) with this manual. The manual contains diagrams and accurate information as used by professional mechanics and repair shops to troubleshoot and identify all componants of the chainsaw.
This is the Echo 3900 parts list manual. A workshop service manual and carburetor manual is also available from this website. Chainsaw Model number Echo 3900.
It is in a pdf format which contains clear exploded diagrams to help you quickly find all parts of your Echo CS-3900 chainsaw.
Contents of Echo CS-3900 Parts List Manual
Introduction, Specifications, Clutch, Engine, Ignition system, Rewind starter, Throttle control, Fuel system, carburetor, Av system, Shaft, Cutting tool drive, Support frame, Special servicing tools and aids.
Echo CS-3900 Specifications
Echo 3900 chainsaw model carbureter type: Walbro WT118A, OEM Part Number.
Model: CS-3900
ENGINE DISPLACEMENT: 39.6 cc
NUMBER OF CYLINDERS: Air cooled, two-stroke, single cylinder gasoline engine
WEIGHT: 9.5 lbs. powerhead only
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: Inertia activated
CLUTCH: Centrifugal
DRIVE TYPE: Direct
MAGNETO TYPE: Electronic
CARBURETOR: Walbro WT series
STARTER TYPE: Automatic rewind
OIL PUMP: Automatic
IGNITION TIMING: Fixed at 30 degrees before TDC
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.35 mm (0.014 in.)
SPARK PLUG TYPE: Champion CJ7Y
SPARK PLUG GAP: 0.63 mm (0.025 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 13.5 fl. oz.
FUEL OIL RATIO: 50:1 with ECHO mix oil
RECOMMENDED FUEL OCTANE: 89 regular automotive. ASPEN2 pre-mixed Alkylate fuel is best at 93 octane, no ethanol, has very long shelf life
MIX OIL SPECIFICATION: ECHO two cycle. ISO-L-EDG. Jaso M345/FD ASPEN Synthetic mix oil is best
CHAIN PITCH: .325 in.
BAR MOUNT PATTERN: 03 link
SHORTEST GUIDE BAR SUPPLIED: 40 cm (16 in.)
LONGEST GUIDE BAR SUPPLIED: 45 cm (18 in.)
See manual for more chainsaw specs…
Echo CS-3900 Parts List PDF
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