Spark plugs must be fitted with the correct heat range to optimize efficient combustion and protect the engine from overheating. The Champion N5C is a relatively hot spark plug with a heat range comparable to the NGK B6ES. This spark plug is appropriate for 1979-1983 Triumph 750 twins with 7.9:1 compression ratio pistons. May be suitable for other applications, but not recommended for use with BSA and Triumph 500 and 650 twins. We sell this product individually and multiple quantities for savings.
The Champion N5C has 14mm threads, thread reach of 19mm, a non-projected tip configuration, and removable terminals for fitment with various spark plug cap types. Champion standard spark plugs have a copper core for improved conduction. The higher heat range may result in detonation in some machines that require a colder spark plug and may not be suitable for all vintage British motorcycles.
The spark plug fires the fuel mixture charge as it enters the combustion chamber, resulting in combustion and power. Spark plugs must be gapped correctly and free of heavy carbon and oil deposits to provide a strong spark.
The spark plug is threaded into the cylinder head and sealed with a special integrated crush washer. Refer to your workshop manual for the correct gap setting.Â
Please note: Due the nature of the product, we unfortunately do not accept returns on bearings, service tools or electrical components. Please be confident about your purchase before ordering. If you have questions, please contact us.
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