OEM APPEARING SHAPE AND SIZE WITH OEM NUMBER TAG THIS KIT WILL PASS VISUAL TEST. THIS IS OUR CUSTOM 60CC KIT . PORTS ARE COPY OF OEM YAMAHA YT 60 AND WILL REQUIRE MUCH LARGER JETTING. WE START WITH A 77.5 - 80 MAIN ON MR12 OR 70-72.5 ON PUMP GAS FOR REFERENCE