Hello everyone. I have been working on my predator 212 swapped dirt bike recently and have been having alot of issues. So it all started with this thread here. https://www.diygokarts.com/vb/showthread.php?t=44168 I was having issues at full throttle and it was flooding on me. Some carb settings were suggested and I tried them and it wouldnt start for me going any leaner than it was. After that I tried cleaning the chinese mikuni carb I had on the engine as well as checking jet sizes so i could order a bigger size but when I put it all back together the engine would no longer start at all for me even on my old settings that used to work all it will do is backfire out the carb. To eliminate spark as an issue I tried starting the engine with no fuel in the bowl with ether and then I could clearly see that the spark is firing but its sending all my power right out the intake valve. My first thought would be that somehow the ignition timing is very far off but as far as I can tell theres no way to change the ignition timing on this engine besides changing the magnet position on the flywheel. Has anyone had this issue before or have any suggestions? My engine is completely stock and has never been opened or had any valve adjustment since it came out of the box besides the chinese mikuni that is on there and it has only about 20 hours of use on it so I cant see it being valve timing and the valves on intake and exhaust are not bent and seem to open and close alright. If it helps I can provide pictures or videos of what I am describing just ask. Thanks for reading!