Craftsman WS4200 Manual & Parts Diagram: A Comprehensive Overview (12/16/2025)
Today, December 16th, 2025, this guide details the Craftsman WS4200 (CMXGTAMDSS30, 41ADSS30793) string trimmer, offering parts lists, diagrams, and essential maintenance information for optimal performance.
The Craftsman WS4200 (model numbers CMXGTAMDSS30 and 41ADSS30793) is a popular gas-powered string trimmer designed for efficient yard maintenance. This comprehensive overview serves as a valuable resource for owners seeking to understand, repair, and maintain their weedwacker. It eliminates the hassle of gas-oil mixing, providing a cleaner and quieter trimming experience.
This guide provides detailed parts diagrams and lists, enabling users to easily identify and order replacement components – including crucial parts like the fuel tank assembly (753-06797) and the clutch assembly (753-06281, PS9131289). Whether you’re addressing engine starting problems, string advancement failures, or unusual vibrations, this resource will help you diagnose and resolve issues effectively. Access to official Craftsman manuals and error code tables is also provided, ensuring a smooth repair process.
Model Numbers and Identification (CMXGTAMDSS30, 41ADSS30793)
Accurate model number identification is crucial when sourcing parts and accessing specific documentation for your Craftsman WS4200 string trimmer. The primary model numbers associated with this trimmer are CMXGTAMDSS30 and 41ADSS30793. These numbers are typically found on the product’s label, often located on the engine housing or near the handle.

Using the correct model number ensures compatibility when ordering replacement parts from MTD OEM Parts or other suppliers. Incorrect part numbers can lead to delays and frustration. This guide specifically references diagrams and parts lists tailored to both CMXGTAMDSS30 and 41ADSS30793, streamlining the repair process. Confirming your model number before proceeding with any maintenance or repair is highly recommended for optimal results and to avoid potential issues.

Key Components and Their Functions
Craftsman WS4200’s core systems—engine, fuel, cutting head, and drive—work together for efficient trimming, and understanding each part is essential for maintenance.
Engine Assembly Breakdown

The Craftsman WS4200 engine assembly is a crucial component, demanding careful attention during maintenance and repair. This section details the key parts, facilitating accurate identification and replacement. Core elements include the cylinder, piston, connecting rod, crankshaft, and ignition system. Diagrams illustrate the precise arrangement of these parts, aiding in reassembly.
Understanding the function of each component is vital; the cylinder houses the piston, converting combustion into motion, while the crankshaft transmits power to the drive shaft. The ignition system initiates combustion, and proper functioning is essential for starting. Accessing detailed engine diagrams and parts lists, specifically for models CMXGTAMDSS30 and 41ADSS30793, ensures correct part selection. Regular inspection and maintenance of these components contribute to the longevity and performance of your WS4200 string trimmer.
Fuel System Components
The Craftsman WS4200 fuel system ensures a consistent fuel supply to the engine, vital for reliable operation. Key components include the fuel tank, fuel lines, and fuel filter. The fuel tank assembly (Part Number: 753-06797) stores the fuel mixture, while the fuel lines deliver it to the carburetor. A crucial element, the fuel filter, prevents debris from reaching the engine, safeguarding its performance.
Maintaining a clean fuel system is paramount. Regularly inspect fuel lines for cracks or leaks and replace the fuel filter as part of routine maintenance. Diagrams illustrate the fuel system’s layout, aiding in identifying and replacing components. Utilizing genuine MTD OEM parts, like the specified fuel tank assembly, guarantees compatibility and optimal function for models CMXGTAMDSS30 and 41ADSS30793. Proper fuel system care extends the life of your WS4200.
Fuel Tank Assembly (Part Number: 753-06797)
The Craftsman WS4200’s fuel tank assembly, identified by Part Number 753-06797, is a critical component responsible for safely storing the fuel mixture powering the trimmer. This assembly includes the tank itself, a fuel cap with a vent, and often integrated fuel filter housing. Diagrams clearly illustrate its construction and connection points within the broader fuel system.
When replacing the fuel tank, ensure a proper seal to prevent fuel leaks. MTD OEM parts are recommended for compatibility with models CMXGTAMDSS30 and 41ADSS30793. Inspect the vent in the fuel cap for obstructions, as this can affect fuel flow. A damaged or deteriorated fuel tank can lead to performance issues, so timely replacement is essential. Maintaining this assembly contributes to the reliable operation of your WS4200 string trimmer.
Fuel Lines and Filters
Craftsman WS4200 fuel lines transport the fuel mixture from the tank assembly to the carburetor, ensuring consistent engine operation. These lines are susceptible to cracking and deterioration over time, leading to fuel leaks and reduced performance. Parts diagrams detail the routing of these lines and their connection points.
Inline fuel filters are crucial for preventing debris from reaching the carburetor, safeguarding against blockages. Regularly inspect and replace these filters as part of routine maintenance; Using genuine MTD OEM parts (for models CMXGTAMDSS30 and 41ADSS30793) guarantees proper fit and fuel compatibility. A clogged fuel filter or damaged fuel line can cause starting problems and erratic engine behavior, impacting the trimmer’s efficiency. Proper fuel delivery is vital for a smoothly running WS4200.
Cutting Head and String Advancement System
The Craftsman WS4200 cutting head houses the string spool and facilitates string advancement for efficient trimming. Diagrams illustrate the assembly, including the spool, spring, and bump knob. The bump feed system advances the string by tapping the head on the ground, extending the cutting length.
Understanding the parts list is crucial for repairs. Common issues include string breakage, tangled string, and failure of the advancement system. Inspect the spool for damage and ensure the string is properly loaded. A worn or damaged spool can hinder performance. Replacement spools and string are readily available as MTD OEM parts for models CMXGTAMDSS30 and 41ADSS30793. Maintaining a functional cutting head is essential for effective weed trimming with your WS4200.
Drive Shaft and Gearbox
The Craftsman WS4200’s drive shaft transmits power from the engine to the cutting head, utilizing a gearbox to adjust speed and torque. Detailed diagrams showcase the drive shaft’s components and their relationship within the trimmer’s assembly. The gearbox is a critical element, converting the engine’s rotational force into the necessary power for string rotation.
Parts lists identify specific components like the drive shaft itself, gearbox housing, and internal gears. Common issues involve a broken drive shaft or gearbox failure, leading to a non-rotating cutting head. Regular inspection for wear and tear is recommended. Replacement parts, designated for models CMXGTAMDSS30 and 41ADSS30793, are available through MTD OEM parts suppliers, ensuring compatibility and reliable repair of your WS4200.

Common Issues and Troubleshooting
Craftsman WS4200 problems include starting difficulties, string advancement failures, and excessive vibration; diagrams aid in diagnosing and resolving these issues with replacement parts.
Engine Starting Problems
Troubleshooting engine starting issues on the Craftsman WS4200 often begins with the fuel system. Verify fresh fuel and a clean fuel filter (Part Number: often integrated within the fuel tank assembly 753-06797). A clogged fuel line can also prevent fuel delivery; inspect and replace if necessary.
Next, examine the spark plug for fouling or damage. A faulty spark plug will hinder ignition. Ensure the spark plug gap is correct according to the manual. If the engine turns over but doesn’t start, compression could be the issue, requiring a more in-depth inspection of the piston and cylinder.
Finally, confirm the choke is functioning correctly, especially in colder temperatures. Refer to the detailed engine diagram for component locations and proper assembly when replacing parts.
String Advancement Failures
Addressing string advancement problems on your Craftsman WS4200 typically involves inspecting the cutting head and spool. Ensure the string is loaded correctly onto the spool, avoiding tangles or overfilling. Check the spool assembly for damage or wear, referencing the cutting head and string spool diagram for proper component orientation.
A common issue is debris obstructing the advancement mechanism. Disassemble the cutting head, clean thoroughly, and relubricate moving parts. Verify the bump feed knob is functioning correctly; it should engage and release the string smoothly. If the problem persists, the clutch assembly (Part Number: 753-06281, PS9131289) might be slipping, preventing adequate power transfer.
Consult the parts list for replacement components and ensure correct installation.
Vibration and Noise Issues
Excessive vibration and unusual noises in your Craftsman WS4200 often indicate a mechanical problem. Begin by inspecting the engine assembly, checking for loose bolts or damaged components using the detailed engine diagram. A worn or unbalanced cutting head can contribute significantly to vibration; examine the spool and blades for wear.
Inspect the drive shaft and gearbox for proper alignment and lubrication. Unusual noises could stem from a failing gearbox or worn bearings. Ensure all guards and shields are securely fastened, as loose parts can rattle and amplify noise. Refer to the parts lists to identify and replace any damaged components, like the fuel tank assembly (Part Number: 753-06797).
Regular maintenance, including tightening bolts, is crucial for minimizing these issues.

Parts Diagrams and Lists
Detailed diagrams and comprehensive parts lists are available for the Craftsman WS4200, including the engine, fuel system, cutting head, and clutch assembly (753-06281).
Detailed Engine Diagram
The Craftsman WS4200’s engine assembly diagram provides a visual breakdown of all internal components, crucial for repairs and understanding its operation. This detailed illustration showcases parts like the cylinder, piston, crankshaft, and connecting rod, all labeled with corresponding part numbers for easy identification.
Users can locate specific components within the engine, facilitating accurate parts ordering from MTD OEM sources. The diagram assists in diagnosing engine-related issues, such as starting problems or performance declines, by pinpointing potential faulty parts. Accessing this diagram is essential for anyone undertaking engine maintenance or a complete overhaul of their WS4200 string trimmer. It’s a vital resource for both DIY enthusiasts and professional repair technicians, ensuring correct assembly and functionality.

Fuel System Parts List

The Craftsman WS4200 fuel system relies on several key components for efficient operation. A critical part is the Fuel Tank Assembly (Part Number: 753-06797), ensuring a consistent fuel supply. Essential fuel lines connect the tank to the carburetor, while in-line fuel filters prevent debris from reaching the engine.
This parts list details each component, including fuel caps, primer bulbs, and carburetor parts, all available through MTD OEM. Maintaining a clean fuel system is vital for preventing starting issues and ensuring optimal engine performance. Regularly replacing fuel lines and filters, using the correct part numbers, guarantees compatibility and longevity. Accessing this list simplifies the process of ordering replacement parts, keeping your WS4200 running smoothly.
Cutting Head and String Spool Diagram
The Craftsman WS4200’s cutting head is designed for efficient weed trimming, utilizing a string spool system. This diagram illustrates the assembly, including the spool, spring, and retaining components. Understanding this layout is crucial for proper string replacement and troubleshooting advancement issues.
The spool holds the cutting string, which advances automatically or manually depending on the model. Regular inspection of the spool and its components ensures smooth operation. Replacement spools are readily available, maintaining consistent cutting performance. This diagram aids in identifying each part, simplifying repairs and maintenance. Proper assembly is key to preventing string breakage and ensuring the trimmer functions as intended. Accessing this diagram streamlines the process of maintaining your WS4200’s cutting system.
Clutch Assembly (Part Number: 753-06281, PS9131289)
The Craftsman WS4200’s clutch assembly, identified by part numbers 753-06281 and PS9131289, is a vital component transferring engine power to the drive shaft. This diagram details the clutch’s intricate parts, including the drum, spider, and clutch shoes. Understanding its construction is essential for diagnosing and repairing power transmission issues.
A malfunctioning clutch can cause the trimmer head to fail to engage or slip during operation. Regular inspection and maintenance, guided by this diagram, can prevent such problems. Replacement parts are readily available, ensuring quick repairs and minimal downtime. Proper clutch function is critical for efficient weed trimming and overall performance. This detailed view simplifies identifying worn or damaged components, facilitating accurate repairs for your WS4200.

Maintenance and Repair
Regular upkeep, string spool replacements, and sourcing MTD OEM parts are crucial for maintaining your Craftsman WS4200’s performance and longevity, ensuring reliable operation.
Regular Maintenance Schedule
Maintaining your Craftsman WS4200 requires a consistent schedule to ensure peak performance and extend its lifespan. After each use, inspect the trimmer for loose fasteners and debris, cleaning it thoroughly. Before each use, check the fuel level and ensure the air filter is clean; replace it when visibly dirty.
Every 25 hours of operation, inspect the spark plug, cleaning or replacing it as needed. Examine the fuel lines for cracks or leaks, and replace them if damaged. Annually, disassemble and clean the carburetor, and inspect the drive shaft for wear. Regularly check and replace the string spool as needed, utilizing genuine MTD OEM parts for optimal compatibility. Proper lubrication of moving parts is also essential. Following this schedule will minimize downtime and maximize the efficiency of your WS4200.
Replacing the String Spool
Replacing the string spool on your Craftsman WS4200 is a straightforward process. First, ensure the trimmer is switched off and disconnected from any power source. Locate the spool cover and remove it, typically by pressing release tabs. Carefully remove the empty spool, noting the string feed direction for proper reinstallation.
Insert a new, pre-wound string spool, ensuring it clicks securely into place. Wind the string ends through the eyelets on the cutting head, following the diagram in your owner’s manual. Reattach the spool cover, confirming it’s properly locked. Always use genuine MTD OEM parts for optimal performance and compatibility. A correctly installed spool ensures efficient string advancement and clean trimming. Refer to the parts diagram for visual guidance during this process.
Ordering Replacement Parts (MTD OEM Parts)
Maintaining your Craftsman WS4200 requires occasional replacement of worn or damaged parts. MTD OEM parts are crucial for ensuring compatibility and upholding the trimmer’s performance standards. You can order these parts through various channels, including the official MTD website and authorized Craftsman retailers.
When ordering, have your model number (CMXGTAMDSS30, 41ADSS30793) readily available. Utilize the detailed parts lists and diagrams provided in this guide to identify the correct part number, such as 753-06797 for the Fuel Tank Assembly or 753-06281 for the Clutch Assembly. Genuine MTD parts guarantee a precise fit and reliable operation, extending the lifespan of your WS4200 string trimmer. Avoid using generic alternatives to prevent potential issues.

Resources and Manuals
Accessing comprehensive resources is vital for Craftsman WS4200 (CMXGTAMDSS30, 41ADSS30793) ownership. Official Craftsman manuals, including detailed parts diagrams, are available online through the MTD website. These manuals provide step-by-step instructions for assembly, maintenance, and troubleshooting.
Furthermore, numerous online platforms host repair guides and parts lookups specifically for the WS4200. Websites dedicated to MTD products offer exploded views and parts lists, simplifying the identification of necessary components like the Fuel Tank Assembly (753-06797) or Clutch Assembly (753-06281). Utilize these resources to ensure proper repairs and maintain your trimmer’s optimal functionality. Links to error code tables and official documentation can also be found online, aiding in efficient problem resolution.