Echo CS-550EVL Parts List Manual

Echo CS-550EVL Parts List Repair

Echo CS-550EVL Parts List for the Echo chainsaw. Repair and identify all chainsaw parts for the Echo 550EVL (CS-550EVL) 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 550EVL parts list manual. A workshop service manual and carburetor manual is also available from this website. Chainsaw Model number Echo 550EVL.

It is in a pdf format which contains clear exploded diagrams to help you quickly find all parts of your Echo 550EVL chainsaw.

Contents of Echo 550EVL 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-550EVL Specifications

Echo CS-550EVL chainsaw model carbureter type: Walbro Hda14B, OEM Part Number: 12300019030.

Model: CS-550EVL

YEAR INTRODUCED: 1983
YEAR DISCONTINUED: 1990
ENGINE DISPLACEMENT: 54.7 cc (3.34 cu. in.)
NUMBER OF CYLINDERS: Air cooled, two-stroke, single cylinder gasoline engine
CYLINDER BORE: 44 mm (1.65 in.)
PISTON STROKE: 36 mm (1.42 in.)
PISTON RING THICKNESS: 2 rings
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
WEIGHT: 6 kg (13.1 lbs.) powerhead only
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: Mechanical

CLUTCH: Centrifugal, 3 metal shoes
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium, injection molded polymer
MAGNETO TYPE: Electronic CD type
CARBURETOR: Walbro HDA
MAJOR REPAIR KIT: K10-HDA
MINOR REPAIR KIT: D10-HDA
AIR FILTER SYSTEM: Nylon mesh cartridge
STARTER TYPE: Automatic rewind. Replacement cord 4X950 mm
OIL PUMP: Automatic, worm gear driven
MAXIMUM ENGINE RPM: 11,000 to 12,000, operating range 5,500 to 9,000
IDLE RPM: 2,200 to 2,800
IGNITION TIMING: fixed
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP: 0.4 mm (0.016 in.)
SPARK PLUG TYPE: Champion CJ7Y, NGK BPM7A
SPARK PLUG GAP: 0.63 mm (0.025 in.
CRANKSHAFT MAIN BEARINGS: Ball, 6202
FUEL TANK CAPACITY: 500 ML (16.9 fl. oz.)
FUEL OIL RATIO: 50:1 with ECHO oil, otherwise 32:1
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: 3/8 in.
CHAIN TYPE: Oregon 72
BAR MOUNT PATTERN: 10 link
SHORTEST GUIDE BAR SUPPLIED: 40 cm (16 in.)
LONGEST GUIDE BAR SUPPLIED: 61 cm (24 in.)

On the Echo CS-550EVL Chainsaw carburetor there are two sides, a low side and a high side. The low side controls idle and acceleration when the saw starts to rev up. The high side controls the amount of fuel the saw will receive at full RPM. Some carburetors will have 2 adjusting screws, one for the low side and one for the high side. There is also an idle screw which makes contact with the throttle shaft to control idle speed along with the low side of the carburetor. Note that some chainsaw model carburetors have just one adjusting screw and the other side is prefixed and non-adjustable. Some may also have no adjusting screws [except the idle screw] to preset or pre-jet the carburetor.

Echo CS-550EVL Parts List PDF

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