I have an inferno mp7.5 and finished break in. Trying to tune the motor but cant seem to get it to lean enough to run at full speed. Can go to about half throttle and if i increase anymore the engine bogs(due to being too rich) and dies on me. What are some good needle settings to try and lean it out some more and run it safely. The motor is a gx.21. Its getting quite frustrating cuz the engine doesnt want to lean. I know its not hte temps here to warm for it to richen itself due sto the cold. any help would be appreciated. BTw if you want to get into 1/8 scale or know someone who wants a pretty good rtr to start in, the inferno sport is pretty nice. I had interference the other day and ran up a curb about 20-25 mph and didnt break a thing on it. Good learning car.