I just bought a new carb w/ air filter and have no clue what kind it is but it had a cool looking air filter lol I think it's a knock off of the dellorto its the one that the choke pops off automatically when you give it full throttle I have a 80cc motor I took off the air filter and it seemed the same & I pulled the plug & it was black& oily running to lean do I put a different size jet or is there a mixture screw all I see outside is idle screw all I know is I had a stock n/t carb on there and it ran great & I am leaving on a 300 mils trip down Cali coast for a month &can't have problems can anybody help me !!!