Stens 440-433 Solid State Module Instruction Manual

1. Introduction

This manual provides essential information for the installation, operation, and maintenance of the Stens 440-433 Solid State Module. This module is designed as a replacement part for specific Briggs & Stratton and John Deere engine models. Please read these instructions carefully before proceeding with installation to ensure proper function and safety.

2. Product Overview

The Stens 440-433 is a solid-state ignition module, a critical component in the engine's ignition system. It is responsible for generating the high voltage required to create a spark at the spark plug, initiating combustion. This module is engineered to meet or exceed OEM specifications for reliable performance.

This image displays the Stens 440-433 Solid State Module, an essential component for engine ignition systems. It features a black coil encased in metal brackets, with two wires extending, one terminating in a spark plug boot and the other in a small connector.

3. Specifications

4. Compatibility

The Stens 440-433 Solid State Module is compatible with a range of engines and equipment. Please verify your engine's OEM part number before purchasing and installing.

Replaces OEM Numbers:

• Briggs & Stratton: 490586, 491312, 492341, 495859, 591459, 595304, 690248, 715231, 795315, 799650
• John Deere: LG492341, LG495859

Compatible With/Replacement For:

• Briggs & Stratton Engine Models: 286702, 286707, 28B702, 28B707, 28C707, 28D707, 31G777, 303447, 303777, 31P777
• John Deere Equipment: 1200 Hydro Rake

5. Installation and Setup

Safety First: Always disconnect the spark plug wire and battery (if applicable) before performing any maintenance or installation on engine components. Wear appropriate personal protective equipment.

1. Locate the Old Module: Identify the existing solid state module on your engine. It is typically mounted near the flywheel.
2. Disconnect Wires: Carefully disconnect any wires attached to the old module, noting their positions for reinstallation.
3. Remove Old Module: Unbolt and remove the old module from its mounting position.
4. Install New Module: Position the new Stens 440-433 module in place. When mounting, it is recommended to use a business card or a similar thin, non-conductive spacer between the module's laminations and the flywheel magnets. This ensures the correct air gap for optimal spark.
5. Tighten Bolts: Securely tighten the mounting bolts. Once tightened, remove the spacer.
6. Reconnect Wires: Reconnect all wires to the new module in their original positions. Ensure connections are secure.
7. Test: Reconnect the spark plug wire and attempt to start the engine to verify proper installation and function.

6. Operating Instructions

Once correctly installed, the Stens 440-433 Solid State Module operates automatically as part of your engine's ignition system. No user intervention is required for its operation. Ensure all other engine components (fuel, air filter, spark plug) are in good working order for optimal engine performance.

7. Maintenance

The Stens 440-433 Solid State Module is a sealed unit and requires no routine maintenance. However, regular inspection of its wiring for damage, fraying, or loose connections is recommended during general engine maintenance. Keep the module free from excessive dirt, debris, and moisture.

8. Troubleshooting

If your engine experiences ignition problems after installing the Stens 440-433 module, consider the following:

• No Spark:
  • Verify all wire connections are secure and correctly attached.
  • Check the spark plug for fouling or damage; replace if necessary.
  • Ensure the air gap between the module and flywheel is correctly set.
  • Inspect the spark plug wire for cuts or damage.
• Engine Runs Poorly/Misfires:
  • This may indicate an intermittent spark. Recheck connections and air gap.
  • Ensure the engine's carburetor and fuel system are clean and functioning correctly.
• Module Overheating/Melted Wires:
  • Ensure the module is not making contact with moving parts or excessive heat sources.
  • Verify the correct air gap. An incorrect gap can cause excessive stress on the module.
  • If wires are melting, immediately cease operation and inspect for shorts or incorrect routing.

If issues persist, consult a qualified engine technician.

9. Warranty and Support

For information regarding product warranty, returns, or technical support, please refer to the Stens official website or contact your authorized Stens dealer. You can also visit the Stens Store on Amazon for additional product details and customer service options.