1991-1993 Yamaha Exciter II-570 Service Manual, Page 232Get this manual

1991-1993 Yamaha Exciter II-570 Service Manual, Page 232

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_S_P_A_RK_P_L_U_G 2E011
Clean the plug with spark plug cleaner if necessaryStandard spark plug: BR9ES (NGK)

Before installing spark plug, clean the gasket surface and plug surface