Zenoah K369991975 Spark Plug NGK CMR6H for G230RC,G240RC,G260RC,G270RC,G290RC,G231PUM,G260PUM,G290PUM  [K369991975]

Ignition plug for Zenoah two-stroke models

This replacement spark plug fits Zenoah two-stroke RC engine models listed in the product name and uses the NGK CMR6H designation shown by the original manufacturer. It is an RC-scale ignition component intended as a direct-service part for glow engines used in model cars and similar hobby platforms.

Use this plug when restoring firing reliability after fouling or when replacing worn ignition parts during routine engine maintenance. The item is a like-for-like replacement option that preserves the original NGK CMR6H reference within Zenoah service lists.

Fitting notes and inspection

Only fit the spark plug with the engine cool, use the correct size socket to protect the ceramic, and begin threading by hand to avoid cross-threading. Tighten to a secure seat without overtorque, then run the engine to check idle and response. Inspect the electrode and insulator periodically to detect fouling or thermal damage.

• Compatibility: Matches the listed Zenoah engine model codes in the product name.
• Service tip: Replace when electrode wear or persistent fouling affects ignition.
• Tuning role: Maintains consistent ignition for needle-valve and timing adjustments.