Remove oil fill cap/plug from oil fill hole, Wipe away any spilled oil, C. spark plug – Tecumseh OH195SA/OH195SP (OHSK50-75) User Manual

Page 23: Clean area around spark plug, Remove and inspect spark plug, Install spark plug and tighten securely, Oil fill cap/plug, Oil drain plug, Figure 48. oil fill cap/plug and oil drain plug, Figure 49. disconnecting/connecting spark plug