Ok guys so I got my 120 mounted on the Raskall inverted, its dripping fuel out of the carb, its not a steady run but enough to soak the glow ignighter fairly well. When I fire it up it really doesnt want to run properly, all it wants to do is go high throttle and then down and back to high throttle again, and its doing that repedilly up and down and up and down, and when I try to remove the glow ignighter it will die.I was haveing an issue with it back fireing so I went ahead and changed the diafram out with a new one and this is the first time its been ran since changeing it out and mounting it inverted. Its my first YS engine and dont know much about it other than what ive read here. Please any help would be greatlly apreciated.

Scott