Popeye SXM said:Great bike. I came across these on ebay, just a suggestion, I think they are 32mm www.ebay.com/itm/2013-2017-KAWASAKI-NINJA-300-EX300-OEM-MAIN-FUEL-INJECTORS-THROTTLE-BODIES/283018841675?_trkparms=aid%3D444000%26algo%3DSOI.DEFAULT%26ao%3D1%26asc%3D52910%26meid%3Dddd962efb7124a8b80f3b18e5fc7459b%26pid%3D100752%26rk%3D3%26rkt%3D6%26sd%3D253687248166%26itm%3D283018841675&_trksid=p2047675.c100752.m1982. any how good luck with the tunning