This listing covers the Zenoah K207098100 NGK CR8HVX platinum spark plug as an RC replacement for the Zenoah G-series engines. It fits the specified G230RC, G240RC, G260RC, G270RC and G290RC models and is intended for ignition maintenance and tuning work.
Hobbyists commonly install this plug when diagnosing running irregularities or replacing a plug that has become fouled or mechanically damaged. A fresh NGK CR8HVX can confirm whether ignition problems are plug-related.
Fitting is simple: gain access to the cylinder head, remove the old plug, check and clear any debris from the seat and thread, then install the NGK CR8HVX with the appropriate spark plug wrench. Follow the engine maker's tightening guidance and run a short test to verify installation.
Check the plug after extended runs; if you find cracking, heavy carbon, or damage, replace it. This product is described solely as an RC engine accessory and not for full-size engines.
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