I'm new to blaster so here it is I took off the carbs to clean it.i order a 290 main jet seeing it has some mods fmf full exhaust no lid on air box and vforce 3 reeds which are fine I check so I but it all back together and it turns on but turns off when I get off the throttle.i don't know if the needle position is in the right place I put it in the middle please help sry if I did something wrong I'm a noob lol