I’ve got a 2008 ttr 110 with a 128 cc big bore kit, ported head, hot cam, pod filter, and exhaust. I’ve got a size 100 main jet in it currently and it runs alright but it leans out at full throttle until the end of the rpm range. Is that an issue with the main jet or something else? And is there a place to get larger jets without drilling the one I currently have?
