The Stihl MS290 Parts Diagram is an essential resource for anyone who owns or operates this popular chainsaw. With its detailed illustrations and clear instructions, this guide will help you identify and replace parts, perform maintenance, and troubleshoot common problems. Whether you’re a seasoned pro or a first-time user, this diagram is a valuable tool that will help you keep your MS290 running smoothly.
Contents
Parts Overview
The Stihl MS290 chainsaw is a versatile tool that can be used for a variety of tasks, from felling trees to cutting firewood. It is important to have a good understanding of the parts that make up the chainsaw in order to maintain it properly and to troubleshoot any problems that may arise.
The following is a comprehensive list of all the parts that make up the Stihl MS290 chainsaw:
Engine
- Cylinder: The cylinder houses the piston and is where the combustion process takes place.
- Piston: The piston moves up and down inside the cylinder, compressing the air-fuel mixture and creating power.
- Crankshaft: The crankshaft converts the reciprocating motion of the piston into rotary motion.
- Connecting rod: The connecting rod connects the piston to the crankshaft.
- Flywheel: The flywheel helps to regulate the speed of the engine.
- Carburetor: The carburetor mixes air and fuel together and delivers it to the engine.
- Ignition coil: The ignition coil generates the spark that ignites the air-fuel mixture.
- Spark plug: The spark plug provides the spark that ignites the air-fuel mixture.
Fuel System
- Fuel tank: The fuel tank holds the gasoline that powers the engine.
- Fuel line: The fuel line carries gasoline from the fuel tank to the carburetor.
- Fuel filter: The fuel filter removes impurities from the gasoline.
Air Intake System
- Air filter: The air filter removes dust and dirt from the air before it enters the engine.
- Air filter housing: The air filter housing protects the air filter from damage.
Exhaust System
- Muffler: The muffler reduces the noise produced by the engine.
- Exhaust port: The exhaust port is where the exhaust gases exit the engine.
Cooling System
- Cooling fins: The cooling fins help to dissipate heat from the engine.
- Flywheel fan: The flywheel fan helps to circulate air around the engine.
Starter System
- Starter rope: The starter rope is used to start the engine.
- Starter pulley: The starter pulley is connected to the crankshaft and helps to start the engine.
- Recoil spring: The recoil spring helps to retract the starter rope.
Lubrication System
- Oil tank: The oil tank holds the oil that lubricates the engine.
- Oil pump: The oil pump delivers oil to the engine.
- Oil lines: The oil lines carry oil from the oil tank to the engine.
Chain and Bar
- Chain: The chain is the cutting component of the chainsaw.
- Bar: The bar supports the chain and guides it as it cuts.
- Sprocket: The sprocket drives the chain.
- Bar oiler: The bar oiler lubricates the chain and bar.
Controls
- Throttle trigger: The throttle trigger controls the speed of the engine.
- Choke lever: The choke lever is used to start the engine when it is cold.
- Stop switch: The stop switch is used to stop the engine.
- Safety interlock: The safety interlock prevents the engine from starting if the chain brake is not engaged.
Safety Features
- Chain brake: The chain brake stops the chain from rotating in the event of a kickback.
- Hand guard: The hand guard protects the operator’s hand from the chain.
- Anti-vibration system: The anti-vibration system reduces vibration levels.
Diagrams and Schematics
This section provides detailed diagrams and schematics of the Stihl MS290 chainsaw, including the location of each part, as well as schematics for the electrical and fuel systems.
Diagram of Stihl MS290 Chainsaw Parts
The following diagram shows the location of each part on the Stihl MS290 chainsaw:
- Engine: The engine is the power source of the chainsaw. It is located at the rear of the chainsaw and is connected to the cutting bar via a drive shaft.
- Cutting bar: The cutting bar is the part of the chainsaw that cuts the wood. It is located at the front of the chainsaw and is attached to the engine via a drive shaft.
- Chain: The chain is the part of the chainsaw that actually cuts the wood. It is made up of a series of sharp teeth that are attached to a metal loop.
- Starter: The starter is the part of the chainsaw that starts the engine. It is located on the side of the chainsaw and is connected to the engine via a pull cord.
- Fuel tank: The fuel tank is the part of the chainsaw that holds the fuel. It is located on the top of the chainsaw and is connected to the engine via a fuel line.
- Oil tank: The oil tank is the part of the chainsaw that holds the oil. It is located on the side of the chainsaw and is connected to the engine via an oil line.
- Air filter: The air filter is the part of the chainsaw that filters the air that is drawn into the engine. It is located on the side of the chainsaw and is connected to the engine via an air intake.
- Muffler: The muffler is the part of the chainsaw that reduces the noise produced by the engine. It is located on the side of the chainsaw and is connected to the engine via an exhaust port.
Schematics of Stihl MS290 Electrical and Fuel Systems
The following schematics show the electrical and fuel systems of the Stihl MS290 chainsaw:
- Electrical schematic: The electrical schematic shows the electrical components of the chainsaw and how they are connected. It includes the battery, starter, ignition coil, and spark plug.
- Fuel schematic: The fuel schematic shows the fuel components of the chainsaw and how they are connected. It includes the fuel tank, fuel line, carburetor, and engine.
3. Replacement Parts
The Stihl MS290 chainsaw is a powerful and versatile tool, but like any machine, it will eventually require replacement parts. Some of the most common replacement parts for the MS290 include the spark plug, air filter, fuel filter, and chain. Replacing these parts is relatively easy and can be done in a matter of minutes.
Replacing the Spark Plug
To replace the spark plug, first remove the spark plug wire by pulling it straight off of the spark plug. Then, use a spark plug wrench to unscrew the spark plug from the engine. Be careful not to overtighten the new spark plug when installing it.
Replacing the Air Filter
To replace the air filter, first remove the air filter cover by unscrewing the two screws that hold it in place. Then, remove the old air filter and replace it with a new one. Be sure to insert the new air filter in the correct direction.
Replacing the Fuel Filter
To replace the fuel filter, first remove the fuel line from the fuel filter by pulling it straight off of the filter. Then, use a pair of pliers to remove the old fuel filter and replace it with a new one. Be sure to insert the new fuel filter in the correct direction.
Replacing the Chain
To replace the chain, first remove the chain cover by unscrewing the two screws that hold it in place. Then, remove the old chain and replace it with a new one. Be sure to adjust the chain tension according to the manufacturer’s instructions.
Replacement Parts Table, Stihl ms290 parts diagram
The following table lists the part numbers, descriptions, and prices of replacement parts for the Stihl MS290 chainsaw.
| Part Number | Description | Price |
|---|---|---|
| 1135 120 1604 | Spark Plug | $6.99 |
| 1130 120 1603 | Air Filter | $7.99 |
| 1135 350 0600 | Fuel Filter | $4.99 |
| 3003 000 3800 | Chain | $24.99 |
4. Maintenance and Troubleshooting
Regular maintenance is crucial for the optimal performance and longevity of the Stihl MS290 chainsaw. By adhering to a consistent maintenance schedule, you can minimize the risk of breakdowns, extend the chainsaw’s lifespan, and ensure its safe and efficient operation.
This section provides detailed guidance on performing basic maintenance tasks, such as cleaning, lubrication, and sharpening the chain. Additionally, a comprehensive troubleshooting guide is included to assist users in identifying and resolving common problems encountered with the chainsaw.
Basic Maintenance Tasks
Regular maintenance involves a combination of simple yet essential tasks that contribute significantly to the chainsaw’s overall health and performance. These tasks include:
- Cleaning the chainsaw: Regularly removing dirt, debris, and sawdust from the chainsaw’s exterior and internal components is vital for maintaining its functionality and preventing premature wear. Cleaning should be done after each use, especially after prolonged or heavy-duty operation.
- Lubricating the chainsaw: Proper lubrication is essential for minimizing friction and wear between moving parts, ensuring smooth operation and extending the chainsaw’s lifespan. The chainsaw’s chain, guide bar, and other moving parts require regular lubrication.
- Sharpening the chain: A sharp chain is crucial for efficient cutting and preventing excessive wear on the chainsaw’s components. Regular sharpening is necessary to maintain the chain’s sharpness and ensure optimal cutting performance.
Troubleshooting Guide
Despite proper maintenance, issues with the Stihl MS290 chainsaw can occasionally arise. This troubleshooting guide provides a systematic approach to identifying and resolving common problems:
- Chain not rotating: This issue can be caused by a variety of factors, including a loose or damaged chain, a worn-out clutch, or a faulty drive sprocket. Inspect the chain for proper tension and damage, and check the clutch and drive sprocket for wear or damage.
- Engine not starting: This issue can be caused by several factors, including a lack of fuel, a faulty spark plug, or a clogged carburetor. Check the fuel level, inspect the spark plug for damage or fouling, and clean the carburetor if necessary.
- Engine overheating: This issue can be caused by a clogged air filter, a faulty fuel system, or a lack of lubrication. Clean the air filter, inspect the fuel system for leaks or blockages, and ensure the chainsaw is properly lubricated.
5. Accessories and Upgrades: Stihl Ms290 Parts Diagram
Enhance the capabilities of your Stihl MS290 chainsaw with a range of accessories and upgrades designed to improve performance, efficiency, and comfort. These additions allow you to customize your chainsaw for specific tasks and working conditions.
Chainsaw Chains
- Stihl 18″ Chain: A durable and reliable chain for general-purpose cutting tasks. Features a low-vibration design for increased comfort.
- Stihl 20″ Chain: A longer chain for larger cutting applications. Provides increased reach and cutting capacity.
- Stihl 24″ Chain: The longest chain available for the MS290, ideal for felling large trees and cutting through thick logs.
Bar Options
- 16″ Bar: A shorter bar for increased maneuverability and precision cutting.
- 18″ Bar: The standard bar length for the MS290, providing a good balance of cutting capacity and control.
- 20″ Bar: A longer bar for increased reach and cutting capacity.
Other Accessories
- Scabbard: Protects the chainsaw bar and chain during storage and transportation.
- Carrying Case: A convenient way to transport and store your chainsaw and accessories.
- File Kit: Essential for sharpening the chainsaw chain and maintaining optimal cutting performance.
| Accessory/Upgrade | Specifications | Price |
|---|---|---|
| Stihl 18″ Chain | .325″ pitch, 0.050″ gauge, 72 drive links | $29.99 |
| Stihl 20″ Chain | .325″ pitch, 0.050″ gauge, 80 drive links | $34.99 |
| Stihl 24″ Chain | .325″ pitch, 0.050″ gauge, 96 drive links | $39.99 |
| 16″ Bar | .325″ pitch, 0.050″ gauge, 16″ length | $24.99 |
| 18″ Bar | .325″ pitch, 0.050″ gauge, 18″ length | $29.99 |
| 20″ Bar | .325″ pitch, 0.050″ gauge, 20″ length | $34.99 |
| Scabbard | Fits 16″-20″ bars | $19.99 |
| Carrying Case | Fits chainsaw and accessories | $49.99 |
| File Kit | Includes round file, flat file, and depth gauge | $14.99 |
Epilogue
With its comprehensive coverage and user-friendly format, the Stihl MS290 Parts Diagram is the ultimate resource for anyone who wants to maintain and repair their chainsaw. Keep this guide handy, and you’ll be able to keep your MS290 running like new for years to come.
Essential FAQs
What are the most common replacement parts for the Stihl MS290 chainsaw?
The most common replacement parts for the Stihl MS290 chainsaw include the chain, guide bar, spark plug, air filter, and fuel filter.
How do I replace the chain on my Stihl MS290 chainsaw?
To replace the chain on your Stihl MS290 chainsaw, follow these steps:
1. Loosen the chain tensioner knob.
2. Remove the old chain from the guide bar.
3. Install the new chain on the guide bar.
4. Adjust the chain tension and tighten the chain tensioner knob.
How do I troubleshoot common problems with my Stihl MS290 chainsaw?
If you’re having problems with your Stihl MS290 chainsaw, consult the troubleshooting guide in the parts diagram. The guide will help you identify and resolve common problems, such as starting problems, idling problems, and cutting problems.