Hey, to start this off I want to inform everyone that I've gotten this build used, and since have taken it down for a complete rebuild changing every single cheap bolt these kits tend to come with. I've run into nothing but issues such as bolts snapping off in engines, causing the engine to bounce and snap the chain slicing my tire while doing 30+ odd MPH. When I first got the bike, I was able to run at full throttle without an issue. Now, when running the bike the engine bogs down at anything over 80% throttle. This started happening before I took everything apart however. Now.. the only thing that I can think of is the gas I'm using. When I got it, I instantly thought to gas it up with some 50:1 that I use for most of my other equipment. From what I believe, that's when the issue starting happening. I haven't tried to run another but the 50:1, but now the tank is just about empty its time to refuel. Before I go and do so, could it be the 50:1 gas/oil mix making my engine die at to high of a throttle? I've adjusted the needle pin to every slot and the highest setting works the best.