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Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

NGK spark plug. The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.

Small engine NGK spark plug (BPR6ES). If the engine does not start, the spark plug may be defective. The spark plug should be replaced periodically during regular maintenance.

NGK Spark Plug (CMR5H)

Boot-spark plug

Spark plug

Spark plug

Spark plug

Spark plug

Spark plug

BPR5ES-11 Spark Plug

S/plg (w16epr-u)

Honda Spark Plug (W14FR-U)

Terminal, ignition
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