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Jack
July 7, 2026
Spark plug number
For model number RY4CSS
Hi Jack, thank you for contacting us. The spark plug for your model is part number PS18789582. Glad to be of help!
Remove carb cover, remove 2 t25 torx head screws. ( they are loctite in so they may be difficult). flip up carb, install new carb. swap gas fill and return lines to carb. choke and start, go to work.
