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Stihl specifies that the 025 be fueled only with unleaded gasoline and a high-quality oil intended for use in two-stroke engines at a ratio of 50 parts gasoline to 1 part oil. To achieve this ratio, combine 2.6 fluid ounces of oil with each gallon of gasoline, adding the oil to an appropriate mixing container first, followed by the gasoline. Model: easiest way is to look at any major assembly (like the plastic carb box cover) - the first 4 digits of the part number is the model. Example - 1121 = 026 or 024; 1125 = 034 or 036 etc etc. Email me or post on this thread the number. People assume the 'CE' number is the year of manufacture - wrong. The YoM is encrypted in the serial number - a dealer may help out with this.
Stihl Serial Numbers
Stihl 025 Chainsaw
SERIES OR ASSEMBLY NUMBER:1123
YEAR INTRODUCED:1993
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:44.3 ccm (2.70 cu. in.)
NUMBER OF CYLINDERS:1
CYLINDER BORE:42 mm (1.65 in)
PISTON STROKE:32 mm (1.26 in.)
CYLINDER TYPE:Aluminum with chrome plated bore
INTAKE METHOD:Piston ported
MANUFACTURER ADVERTISED H.P.:3.0
WEIGHT:
OPERATOR CONFIGURATION:One Man operation
HANDLEBAR SYSTEM:Anti-vibration
CHAIN BRAKE:Yes
CLUTCH:Centrifugal
DRIVE TYPE:Direct
CONSTRUCTION:Injection molded plastic, die cast magnesium
MAGNETO TYPE:Electronic
CARBURETOR:ZAMA C1Q type
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:Nylon mesh cartridge
STARTER TYPE:Automatic rewind
OIL PUMP:Automatic, gear driven, non adjustable
MAXIMUM ENGINE RPM:12,500
IDLE RPM:2,800
IGNITION TIMING:Fixed
BREAKER POINT SETTING:none
FLYWHEEL/COIL AIR GAP:0.2 to 0.4 mm (0.008 to 0.016 in.)
SPARK PLUG TYPE:Bosch WSR6F, NGK BPMR7A, Champion RCJ7Y
SPARK PLUG GAP:0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:50:1 with Stihl oil
RECOMMENDED FUEL OCTANE:Regular grade
MIX OIL SPECIFICATION:Stihl two-cycle chain saw mix oil
CHAIN PITCH:
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:Available from this website
SERVICE MANUAL:Available from this website
YEAR INTRODUCED:1993
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:44.3 ccm (2.70 cu. in.)
NUMBER OF CYLINDERS:1
CYLINDER BORE:42 mm (1.65 in)
PISTON STROKE:32 mm (1.26 in.)
CYLINDER TYPE:Aluminum with chrome plated bore
INTAKE METHOD:Piston ported
MANUFACTURER ADVERTISED H.P.:3.0
WEIGHT:
OPERATOR CONFIGURATION:One Man operation
HANDLEBAR SYSTEM:Anti-vibration
CHAIN BRAKE:Yes
CLUTCH:Centrifugal
DRIVE TYPE:Direct
CONSTRUCTION:Injection molded plastic, die cast magnesium
MAGNETO TYPE:Electronic
CARBURETOR:ZAMA C1Q type
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:Nylon mesh cartridge
STARTER TYPE:Automatic rewind
OIL PUMP:Automatic, gear driven, non adjustable
MAXIMUM ENGINE RPM:12,500
IDLE RPM:2,800
IGNITION TIMING:Fixed
BREAKER POINT SETTING:none
FLYWHEEL/COIL AIR GAP:0.2 to 0.4 mm (0.008 to 0.016 in.)
SPARK PLUG TYPE:Bosch WSR6F, NGK BPMR7A, Champion RCJ7Y
SPARK PLUG GAP:0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:50:1 with Stihl oil
RECOMMENDED FUEL OCTANE:Regular grade
MIX OIL SPECIFICATION:Stihl two-cycle chain saw mix oil
CHAIN PITCH:
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:Available from this website
SERVICE MANUAL:Available from this website
Fuel Mixture For Stihl 025 Chainsaw
Stihl specifies that the 025 be fueled only with unleaded gasoline and a high-quality oil intended for use in two-stroke engines at a ratio of 50 parts gasoline to 1 part oil. To achieve this ratio, combine 2.6 fluid ounces of oil with each gallon of gasoline, adding the oil to an appropriate mixing container first, followed by the gasoline.
Two-cycle engine oils are designed for high-performance engines such as those in chain saws, and they will help prevent problems such as pre-ignition and ring sticking.
Stihl also recommends the use of gasoline with a minimum octane rating of 89 in the 025. Use of gasoline with a lower octane rating, the manufacturer claims, increases the chance of pre-ignition, high engine operating temperatures and piston seizure.
Safety and Convenience Features
Stihl Serial Number Search
The Stihl 025 chainsaw is equipped with a chain brake that can be operated manually by the user, and it is also activated automatically by inertia when the hand guard in front of the handle moves suddenly toward the nose of the bar, as may happen when the saw kicks back.
Prodad mercalli torrent download. The saw is equipped with vibration-damping motor mounts that reduce the amount of vibration transmitted from the running motor to the saw’s handles.
Stihl 050 AV Chainsaw Specifications
Stihl 050 AV Specifications for Stihl 050AV chainsaws, Find detailed specs information for the Stihl chainsaw including engine, fuel system, Carburetor, ignition system, chain lubrication,Torque settings and cutting attachments.
Stihl 050 AV Specs
YEAR INTRODUCED: 1968
YEAR DISCONTINUED: 1972
ENGINE DISPLACEMENT: 89 ccm (5.42 cu. in.)
CYLINDER BORE: 52mm (2.05 in.)
PISTON STROKE: 42mm (1.65 in.)
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.: 5.8
WEIGHT: 11.4kg with 53cm bar & chain, 25.1 lbs. with 21 in. bar & chain
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: none
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Bosch
CARBURETOR: Tillotson HS-60A, B series
MAJOR REPAIR KIT: RK-23HS
MINOR REPAIR KIT: DG-5HS/T
AIR FILTER SYSTEM: Flocked wire mesh element
STARTER TYPE: Stihl automatic rewind
OIL PUMP: Automatic
IGNITION TIMING: 2.5mm (.1 in.) before TDC
BREAKER POINT SETTING: 0.35 to 0.40mm (0.014 to 0.016 in.) before TDC
SPARK PLUG TYPE: Bosch WSR6F
SPARK PLUG GAP: 0.5mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 900ml
FUEL OIL RATIO: 40:1 with Stihl oil
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil
CHAIN PITCH: 3/8 in. optional .404 in.
CHAIN TYPE: Stihl
SHORTEST GUIDE BAR SUPPLIED: 53cm (21 in.)
LONGEST GUIDE BAR SUPPLIED: 75cm (30 in.)
YEAR DISCONTINUED: 1972
ENGINE DISPLACEMENT: 89 ccm (5.42 cu. in.)
CYLINDER BORE: 52mm (2.05 in.)
PISTON STROKE: 42mm (1.65 in.)
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported
MANUFACTURER ADVERTISED H.P.: 5.8
WEIGHT: 11.4kg with 53cm bar & chain, 25.1 lbs. with 21 in. bar & chain
HANDLEBAR SYSTEM: Anti-vibration
CHAIN BRAKE: none
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Bosch
CARBURETOR: Tillotson HS-60A, B series
MAJOR REPAIR KIT: RK-23HS
MINOR REPAIR KIT: DG-5HS/T
AIR FILTER SYSTEM: Flocked wire mesh element
STARTER TYPE: Stihl automatic rewind
OIL PUMP: Automatic
IGNITION TIMING: 2.5mm (.1 in.) before TDC
BREAKER POINT SETTING: 0.35 to 0.40mm (0.014 to 0.016 in.) before TDC
SPARK PLUG TYPE: Bosch WSR6F
SPARK PLUG GAP: 0.5mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 900ml
FUEL OIL RATIO: 40:1 with Stihl oil
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Stihl two-cycle chain saw mix oil
CHAIN PITCH: 3/8 in. optional .404 in.
CHAIN TYPE: Stihl
SHORTEST GUIDE BAR SUPPLIED: 53cm (21 in.)
LONGEST GUIDE BAR SUPPLIED: 75cm (30 in.)
Stihl 050 AV Specifications Carburetor
Stihl Serial Numbers And Models
Replace carburetor with Tillotson or Walbro carb:
Tillotson Carburetor Models: HS-60D
Walbro Carburetor Models: WS-11
Walbro Carburetor Models: WS-11
![Stihl Serial Number Year Guide Stihl Serial Number Year Guide](https://s3.manualzz.com/store/data/022641107_1-e297d4f1791e3bd973a00c69109fba85.png)
Piston Ring Size: Piston Ring (52mm x 1.5mm)
Replace spark plug with Bosch WSR6F, Champion RCJ6Y and NGK BPMR7A.
Covers all models and dates of manufacture.
Stihl Serial Number Check
Stihl 050 AV Specifications information can be found in Carburetor Manuals HERE and a Stihl 050AV chainsaw workshop manual HERE. Stihl Parts list HERE a chainsaw search (magnifier icon) at top and bottom of this page, as well as a chainsaw repair help question and answer page HERE.