1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your UpStart Components replacement spark plug. This spark plug is designed for high durability and optimal performance in small engines, resisting fouling and corrosion. Proper installation and regular maintenance ensure efficient engine operation, improved fuel efficiency, and extended engine life.

Figure 1: UpStart Components Spark Plug. This image shows the spark plug from a side angle, highlighting its metal threads, ceramic insulator, and electrode tip.
2. Compatibility
This UpStart Components spark plug is a replacement part compatible with the following snowblower models and spark plug types:
- Compatible Snowblower Models: CUB CADET Snowblower 524, 524 T, 524 WE, 524 SWE, 526 WE, 528 SWE
- Compatible Spark Plug Replacements: Champion RN9YC, NGK BPR6E, NGK BPR6ES
Note: This product is an UpStart Components brand replacement part and is not an OEM product. All mentions of brand names or model descriptions are made strictly to illustrate compatibility.
3. Features and Benefits
The UpStart Components spark plug offers several advantages for your small engine:
- High Durability: Constructed with premium quality materials to resist fouling and corrosion, ensuring long-lasting performance.
- Superior Conductivity: Provides consistent voltage for reliable ignition and extended operational life.
- Stable Operating Temperature: Guarantees effective heat control under various engine loads.
- Enhanced Engine Performance: Improves engine start-up, overall performance, fuel efficiency, and stability, contributing to a longer engine life.

Figure 2: Close-up of the spark plug's electrode and threads. This view emphasizes the precision engineering designed for optimal engine function.
4. Installation and Setup
Replacing a spark plug requires careful attention to detail. Always refer to your snowblower's specific owner's manual for detailed instructions and safety precautions before proceeding.
Safety Precautions:
- Ensure the engine is off and cool before beginning any work.
- Disconnect the spark plug wire to prevent accidental starting.
- Wear appropriate safety gear, such as gloves and eye protection.
Installation Steps:
- Locate the Spark Plug: Identify the spark plug on your snowblower engine. It typically has a thick wire connected to it.
- Remove the Spark Plug Wire: Gently pull the spark plug boot off the old spark plug. Do not pull on the wire itself.
- Clean Around the Plug: Use a brush or compressed air to clean any debris around the spark plug base to prevent it from falling into the engine cylinder when removed.
- Remove the Old Spark Plug: Use a spark plug wrench to loosen and remove the old spark plug. Turn counter-clockwise.
- Inspect the New Spark Plug: Before installation, visually inspect the new UpStart Components spark plug for any damage. Ensure the gap is correct according to your snowblower's manual (though these spark plugs are typically pre-gapped for common applications, verification is recommended).
- Install the New Spark Plug: Thread the new spark plug into the engine by hand to avoid cross-threading. Once finger-tight, use the spark plug wrench to tighten it. Do not overtighten; refer to your snowblower's manual for specific torque specifications.
- Reconnect the Spark Plug Wire: Push the spark plug boot firmly onto the new spark plug until it clicks into place.

Figure 3: View of the spark plug's terminal and ceramic insulator. This part connects to the ignition system and provides insulation.
5. Operating Principles
A spark plug is a critical component in a gasoline engine's ignition system. Its primary function is to ignite the air-fuel mixture in the engine's combustion chamber. When the engine's ignition coil sends a high-voltage electrical pulse to the spark plug, it creates an electrical arc (spark) across the gap between the central and ground electrodes. This spark ignites the compressed fuel-air mixture, initiating the combustion process that powers the engine.
The quality of the spark directly impacts engine performance, fuel efficiency, and emissions. A healthy spark plug ensures a strong, consistent spark for optimal combustion.
6. Maintenance
Regular inspection and timely replacement of your spark plug are crucial for maintaining your snowblower's performance and preventing potential engine damage.
Inspection:
- Periodically remove the spark plug (following safety precautions in Section 4) and inspect its condition.
- Look for signs of wear, such as a worn or rounded electrode, heavy carbon deposits, oil fouling, or a cracked insulator.
- A healthy spark plug typically has a light tan or grayish-white deposit on the firing tip.
Replacement Schedule:
Refer to your snowblower's owner's manual for the recommended spark plug replacement interval. As a general guideline, spark plugs in small engines should be inspected annually or every 25-50 hours of operation and replaced as needed, or if any signs of wear or damage are observed.
7. Troubleshooting
A damaged or worn spark plug can lead to various engine problems. Replace your spark plug if you experience any of the following symptoms:
- Difficulty Starting: The engine cranks but struggles to start or fails to start.
- Engine Misfiring: The engine runs rough, stumbles, or loses power intermittently.
- Unstable Idle: The engine's RPM fluctuates erratically when idling.
- Reduced Fuel Efficiency: The engine consumes more fuel than usual for the same amount of work.
- Loss of Power: The snowblower lacks its usual power during operation.
Note: These symptoms can also indicate other engine issues. If replacing the spark plug does not resolve the problem, consult a qualified service technician.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | UpStart Components |
| Model Number | SP-RN9YC-DL1196 |
| Product Dimensions | 3.5 x 1 x 1 inches |
| Core Material | Copper |
| Top Material Type | Copper |
| Vehicle Service Type | Snowblower |

Figure 4: Packaging for the UpStart Components Spark Plug. The light blue box features the "Spark Plug" text and "UpStart" logo.
9. Warranty and Support
This UpStart Components spark plug is covered by warranties offered solely by UpStart Components. This product is not affiliated with any OEM brands and is not covered under any warranties offered by the original manufacturers of the compatible equipment.
For specific warranty details or support inquiries, please contact UpStart Components directly. Contact information can typically be found on the product packaging or the official UpStart Components website.





