Champion Spark Plug - CJ8

Name: Champion Spark Plug - CJ8
Brand: Champion
SKU: etzcd5fz6f
Availability: InStock

Champion CJ8 / CCH843S COPPER PLUS Spark Plug Replaces 8F-6347. When its time to replace the OE sp...

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Product Information

Full details

This guide is for anyone using a Champion CJ8 spark plug, whether in a vehicle, lawnmower, or other small engine. The CJ8 offers reliable performance and is a cost-effective replacement for your engine's original spark plug. A key consideration is ensuring the correct gap and thread size for your specific engine model. This guide will walk you through the features, usage, and care of your Champion CJ8 spark plug.

All features

Model Part Number	CJ8
Brand	Champion

Extended Product Information

FAQs

What is the thread size of the CJ8 spark plug?

The thread size is M14x1.25.

What is the electrode gap for the CJ8 spark plug?

The electrode gap is 0.6 mm.

What is the spanner size needed for the CJ8?

The spanner size is 19 mm.

What are the key features of the Champion CJ8 spark plug?

Key features include a copper-core center electrode, Ultraseal™ coating, and a SAC-9 semiconductor resistor.

Where can I find if the CJ8 is compatible with my engine?

Use the cross-reference table or consult your engine's manual.

What is the benefit of the Ultraseal™ coating?

The Ultraseal™ coating provides maximum corrosion resistance.

Troubleshooting

Engine misfires or runs rough.

Check the spark plug gap and condition. Replace the spark plug if it's fouled or damaged.

Engine difficult to start.

Ensure the spark plug is properly connected and the gap is correct. Check the engine's fuel supply.

Poor engine performance.

Inspect the spark plug for wear, fouling, or damage. Replace if necessary. Check for any other engine issues.

Pros and Cons

Pros

OE Performance: Delivers original equipment performance to the aftermarket.
Corrosion Resistance: Ultraseal™ coating provides superior protection.
Wide Range: Champion offers a broad range of spark plugs for many applications.

Cons

Requires proper gapping before installation.
May not be suitable for all engine types without cross-referencing.
Performance can be affected if not properly installed.

Setup, Compatibility & Care

Compatibility: Ensure the CJ8 is compatible with your engine model by cross-referencing with the manufacturer's recommendations or the provided cross-reference table.
Gaping: The electrode gap should be 0.6 mm. Use a gapping tool to adjust if needed.
Installation: Use a 19 mm spanner to install the spark plug. Tighten to the torque specifications recommended in your engine's manual. Do not overtighten.
Care: Check your spark plugs periodically for wear and tear. Replace them as needed to maintain optimal engine performance. Inspect for any signs of fouling or damage.