NGK spark plug. NGK BP5HS.
For Yamaha gas (2 cycle) G1, medium altitude.
Cross Reference Part #''s SPK ML BP5HS ;BP5HS CP;PRT-2813 EC;16430G1 EZ;16430-G1 EZ;7-306 FP;346 IMC;LVBP5HS LV;LVBP5HS12 LV;94700-00168 YA