Pro Chaser Carburetor Instruction Manual

1. Product Overview

This manual provides essential information for the installation, operation, and maintenance of your new Pro Chaser Carburetor. This carburetor is designed as a replacement part for specific Craftsman chainsaw models. Please read all instructions carefully before proceeding with installation or use.

2. Package Contents

Upon opening your package, please verify that all the following components are included:

• 1 x Carburetor
• 2 x Fuel Hoses
• 1 x Fuel Filter
• 2 x Gaskets
• 1 x Spark Plug
• 1 x Primer Bulb
• 1 x Air Filter

3. Compatibility Verification

This Pro Chaser Carburetor is compatible with the following Craftsman chainsaw models:

• Craftsman 358.350601
• Craftsman 358.350660
• Craftsman 358.350800
• Craftsman 358.350801
• Craftsman 358.350802
• Craftsman 358.351040

It is crucial to compare your existing carburetor with the images provided in this manual to ensure proper fitment. Minor design differences can exist between models. If you are uncertain about compatibility, consult a qualified technician or contact customer support with clear images of your current carburetor.

4. Setup and Installation

Warning: Always ensure the chainsaw engine is off, cool, and the spark plug wire is disconnected before performing any maintenance or installation procedures. Wear appropriate safety gear, including gloves and eye protection.

1. Prepare the Chainsaw: Place the chainsaw on a stable, flat surface. Disconnect the spark plug wire to prevent accidental starting.
2. Access the Carburetor: Remove the air filter cover and air filter. Depending on your chainsaw model, you may need to remove additional housing components to access the carburetor.
3. Disconnect Fuel Lines: Carefully disconnect the fuel lines from the old carburetor. Be prepared for a small amount of fuel spillage.
4. Remove Old Carburetor: Unbolt the old carburetor from the engine manifold. Note the position and connection of any linkages (throttle, choke).
5. Install New Gaskets: Place the new gaskets provided in the correct positions between the engine manifold and the new carburetor.
6. Mount New Carburetor: Carefully position the new Pro Chaser Carburetor and secure it with the bolts. Do not overtighten.
7. Connect Fuel Lines and Linkages: Reconnect the fuel lines to the appropriate ports on the new carburetor. Attach the throttle and choke linkages. Ensure they move freely.
8. Install New Fuel Filter and Hoses: Replace the old fuel filter with the new one provided. If necessary, replace the fuel hoses.
9. Install New Primer Bulb and Air Filter: Replace the primer bulb if needed. Install the new air filter and reattach the air filter cover and any other housing components.
10. Reconnect Spark Plug: Reconnect the spark plug wire.

Professional installation is recommended if you are unfamiliar with chainsaw maintenance.

Figure 1: Front view of the Pro Chaser Carburetor, highlighting key dimensions for compatibility verification. Note the 30.5mm (1.2") width and 3mm (0.12") fuel line port diameters.

Figure 2: Top-down perspective of the carburetor, showing the general layout and mounting points.

Figure 3: Side view of the carburetor, illustrating the internal throttle plate and air intake.

Figure 4: Angled view of the carburetor, showing the various ports and connections for fuel and vacuum lines.

Figure 5: Close-up view of the carburetor's adjustment screws (idle, high-speed, low-speed), typically located on the side.

5. Operation and Initial Adjustment

After installation, the carburetor may require minor adjustments for optimal performance. Refer to your chainsaw's original owner's manual for specific carburetor adjustment procedures (idle speed, high-speed, and low-speed mixture screws).

• Fuel Mixture: Always use the correct fuel-to-oil mixture specified by your chainsaw manufacturer.
• Primer Bulb: Press the primer bulb several times until fuel is visible in the return line, indicating the carburetor is primed.
• Choke: Use the choke as instructed by your chainsaw's manual for cold starts.

Improper adjustment can lead to engine damage or poor performance. If you are unsure, consult a professional.

6. Maintenance

Regular maintenance ensures the longevity and proper function of your carburetor and chainsaw.

• Air Filter: Regularly inspect and clean or replace the air filter (new one included in package) to ensure proper air flow to the carburetor.
• Fuel Filter: Replace the fuel filter periodically (new one included in package) to prevent contaminants from reaching the carburetor.
• Fuel Lines: Inspect fuel lines for cracks or leaks and replace as necessary.
• Spark Plug: Replace the spark plug (new one included in package) as part of routine maintenance or if starting issues occur.
• Carburetor Cleaning: If performance issues arise, the carburetor may need cleaning. This typically involves disassembling, cleaning with carburetor cleaner, and reassembling. This procedure is best performed by experienced individuals.

7. Troubleshooting

If your chainsaw experiences issues after carburetor installation, consider the following common troubleshooting steps:

• Engine Not Starting:
  • Ensure fuel tank has fresh, correctly mixed fuel.
  • Check if the primer bulb is working and fuel is visible.
  • Verify spark plug is clean and producing spark.
  • Confirm choke and throttle linkages are correctly connected and functioning.
• Poor Engine Performance (Stalling, Lack of Power):
  • Inspect air filter for clogs.
  • Check fuel filter for blockages.
  • Ensure fuel lines are not kinked or leaking.
  • Carburetor adjustment screws may need fine-tuning.
• Fuel Leaks:
  • Check all fuel line connections for tightness.
  • Ensure gaskets are properly seated and not damaged.

For persistent issues, professional diagnosis and repair are recommended.

8. Specifications

• Brand: Pro Chaser
• Model Number: PC210131
• Exterior Finish: Machined
• Included Components: Carburetor, 2 Fuel Hoses, Fuel Filter, 2 Gaskets, Spark Plug, Primer Bulb, Air Filter
• UPC: 679070671115

9. Warranty and Support

This Pro Chaser Carburetor comes with a 90-day manufacturer warranty. This warranty covers defects in materials and workmanship under normal use.

For warranty claims, technical assistance, or any questions regarding your Pro Chaser Carburetor, please contact the seller directly through your purchase platform. Provide your order details and a clear description of the issue to facilitate prompt support.