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Need help?Do you have a question about the Stihl 009 and is the answer not in the manual?
Lists available tools and ordering information in multiple languages.
Details the construction and operational principles of the fuel system.
Lists common faults, causes, and remedies for the fuel system.
Procedure for pressure testing the carburetor for leaks.
Steps for dismantling, repairing, and adjusting the carburetor.
Maintenance and operation of fuel lines, tank vents, and air filters.
Details engine specifications like displacement, bore, stroke, and torque.
Carburetor type, adjustment, and fuel capacity specifications.
Details ignition system type, gaps, timing, and components.
Lists torque specifications for various fasteners and components.
Specifications for guide bars, chain, sprocket, and lubrication.
Lists weights for models and available repair kits/accessories.
Describes the construction and operation of the clutch and chain sprocket.
Explains the construction and operation of the chain brake.
Lists common faults, causes, and remedies for the clutch and chain brake.
Details disassembly and assembly procedures for the clutch.
Details disassembly and assembly procedures for the chain brake.
Explains how the chain brake is engaged and disengaged.
Lists faults, causes, and remedies for clutch and chain brake issues.
Troubleshooting for chain turning at idle speed, including causes and remedies.
Troubleshooting for excessive chain sprocket wear and incorrect chain tension.
Troubleshooting for the chain brake not stopping the saw chain immediately.
Step-by-step guide for disassembling and assembling the clutch.
Important cautions and procedures for clutch repair, including thread direction.
Detailed steps for removing chain brake components from the sprocket cover.
Instructions for reassembling the chain brake and its components.
Describes the construction of the air-cooled, single cylinder two-stroke engine.
Lists engine faults like starting issues, power loss, and overheating with causes/remedies.
Details the process of removing the piston pin using a drift.
Cautions regarding handling cylindrical rollers and locking the crankshaft.
Steps for installing the piston pin and positioning the piston in the cylinder.
Instructions for fitting the cylinder and tightening base screws.
Steps for splitting the crankcase halves and removing the crankshaft.
Lists components remaining in each crankcase half after separation.
Procedures for pressing in needle sleeves and oil seals into the crankcase.
Instructions for cleaning crankcase sealing faces before fitting new gaskets.
Details on fitting oil seals, cylindrical rollers, and thrust washers.
Steps for coating mating faces, fitting crankshaft, and joining crankcase halves.
How to test the crankcase for leaks using a tester and vacuum pump.
Identifies common causes of leaks such as seals, gaskets, or cracks.
Step-by-step guide for performing the pressure test on the crankcase.
Instructions for removing the oil pump as part of the pressure test preparation.
Steps for conducting a vacuum test on the crankcase to check oil seals.
Explains when oil seals need replacement based on vacuum test results.
Instructions for removing oil seals using a special puller.
Reference to section 3.7 for installation procedures of new oil seals.
Describes the breaker-controlled magneto ignition system and its components.
Explains the principles of magnetic induction in the ignition system.
Diagram illustrating the components of the magneto ignition system.
Explains how magnetic flux, contact breaker, and condenser interact to create spark.
Describes the function of the ignition stop switch in short-circuiting the ignition.
Troubleshooting steps involving spark plug condition and ignition lead insulation.
Checks for correct air gap, flywheel condition, and magneto edge gap.
Procedures for checking the condenser and ignition armature.
Explains the spark plug's role and how its insulator appearance indicates operating conditions.
Guidance on checking spark plug type, gap, and interpreting insulator appearance.
Procedures for cleaning, gapping, and checking the spark plug.
Explains the ignition lead's role and how insulation damage affects the system.
Detailed steps for removing the ignition lead from the armature and terminal.
Steps for installing the new ignition lead onto the armature and terminal.
Explains how the stop switch works and how to remove it.
Describes the flywheel's role in accommodating magnets, smoothing rotation, and providing cooling.
Step-by-step guide for removing the flywheel from the crankshaft.
Identifies the primary, secondary, and ground connections on the ignition armature.
Outlines methods for testing the ignition armature's coil windings.
Explains how the condenser is wired and its function in suppressing sparking.
Describes methods for testing the condenser's capacity with an ohmmeter or tester.
Describes the contact set as a switch that controls the primary circuit.
Discusses wear on contact points, gap adjustment, and replacement needs.
Steps for removing and installing a new contact set.
Specifies the ignition timing before Top Dead Center (TDC) and breaker point gap.
How to adjust the breaker point gap and its relation to ignition timing.
Explains how timing, gaps, and lubrication felt are interrelated and affect each other.
Steps for checking ignition timing using a dial gauge and timing unit.
How to align flywheel and crankcase timing marks for ignition timing.
Procedure for adjusting ignition timing using a dial gauge and timing unit.
Discusses the influence of magneto edge gap on ignition system performance.
Defines the magneto edge gap and its importance for ignition performance.
How to check the magneto edge gap at the point of current interruption.
Describes the components and working principle of the rewind starter mechanism.
Lists faults, causes, and remedies for rewind starter issues like broken rope or spring.
Steps for removing the fan housing along with the rewind starter.
Procedures for removing old rope residue and threading a new starter rope.
Details on fitting the spring clip, washer, and pawl during reassembly.
Instructions for installing and lubricating the replacement rewind spring.
How to tension the rewind spring and check for correct starter grip function.
Notes on cleaning and lubricating the rewind starter mechanism for smooth operation.
Describes the anti-vibration system's purpose and components.
Instructions for repairing or replacing vibration dampers on the handlebar and rear handle.
Explains the construction and operating principle of the chain oil pump.
Discusses how oil delivery rate relates to engine speed and chain speed.
Lists causes and remedies for a lack of oil supply to the chain.
Troubleshooting for issues like crankcase cracks or faulty seals causing oil loss.
Remedies for low oil delivery due to diaphragm or worn plunger guide.
Explains the chain oil supply system, including the tank and pickup body.
Describes the tank vent's function and replacement procedure if damaged.
Instructions for cleaning the crankcase seam for debris after separation.
Advice on dealing with a stuck pump plunger from oil resin buildup.
Steps for removing the pump housing and disconnecting the delivery hose.
Guide to cleaning the housing and correctly reassembling the diaphragm and spring.
Describes the operation of the fuel pump as actuated by crankcase pressure.
Explains how the carburetor controls fuel supply via the metering diaphragm.
Describes four basic operating conditions of the carburetor (starting, idling, part/full throttle).
Troubleshooting for carburetor flooding, engine stalling, and throttle response issues.
Troubleshooting for engines that will not idle or run erratically at idle speed.
Troubleshooting for engine stalling at idle and loss of power under load.
Detailed steps for performing the carburetor pressure test and identifying leaks.
Instructions for removing the carburetor and its associated components for repair.
Procedures for removing and repairing the fuel pump end cover and diaphragm.
Steps for repairing or replacing the metering diaphragm and inlet needle valve.
Guide to cleaning all carburetor parts and reassembling with adjustment screws and plates.
Steps for adjusting high-speed, low-speed, and idle speed screws.
Notes on how engine behavior indicates correct adjustment of carburetor screws.
Maintenance of the fuel pickup body and felt bar in the fuel tank.
Describes the tank vent's function and replacement procedure if damaged.
Instructions for cleaning the crankcase seam for debris after separation.
Advice on dealing with a stuck pump plunger from oil resin buildup.
Explains the air filter's role and how to clean or replace it.
Steps for removing and installing a faulty choke valve.
General
