Catalogued as Zenoah K369992369, the Champion Y82 spark plug is an RC-scale replacement for the indicated Zenoah two-stroke engine models. It is intended to return consistent ignition characteristics and to support stable idle and throttle behaviour when the engine is serviced.
Fitment is model-specific: the Y82 meets the thread and seat specifications used on G200PU-EI, G200PUM-EI, and G260PU-EI engines. When fitting a new plug, work on a cool engine, remove the old plug fully, then hand-thread the replacement to confirm alignment before applying the correct torque to avoid cross-threading.
From a troubleshooting perspective the spark plug is a diagnostic and maintenance item. Fitting a new Champion Y82 can help determine whether ignition issues are causing unstable running and can be used to validate other tuning changes.
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