I took the spark plug out and the tip was black so I did what you said, I left it overnight and I also took off the exhaust, which contained a lot of leftover fuel so I poured the fuel out and it started, I also tested with different fuel mixtures (1:40, 1:32)but im not sure on which works the best, I've started tuning the carb and doing some drag races with a friend that has a nitro, but the 2 stroke engine doesn't seem to reach very high rpms, but I'm happy with it at the moment, should I try a tank of 1:25? Or will that harm the engine?
I also prime until I can see that it's full and then, choke on, pull until it sounds like it's about to start, choke off and start it (it normally takes 2 pulls).