CHAMPION RCJ4 Ignition Electrode for Zenoah G230PUH/G230PUM - K369991169  [K369991169]

Overview of the CHAMPION RCJ4 Plug

The CHAMPION RCJ4 spark plug is supplied as a replacement ignition electrode for Zenoah G230PUH and G230PUM engines, intended to reinstate reliable spark and stable combustion in nitro RC models. It is a straightforward service part for glow-engine upkeep.

To fit the plug: use a spark plug socket to remove the old unit, clean the threads and sealing washer area, hand-start the new plug and then tighten carefully with the socket. Proper seating and avoiding cross-threading are essential; do not over-tighten the plug.

When assessing compatibility and ongoing service, the plug plays a role in ignition consistency. Inspect the electrode and gap during scheduled maintenance, replace the plug if fouled or damaged, and include plug condition in troubleshooting routines for poor idling or uneven throttle response.