if you start this engine up and it immediately bogs your engine is to rich so turn the high speed needle ( the on the left in 1/8th of turn to the right and see if will run. you want to be very careful as you can get a lean condition and you will toast your engine Go to this link and read the entire thread its a sister to RC Universe called RC TECh
https://www.rctech.net/forum/offroad...ing-bible.html. this is more informative thanthis site
good luck
Michael