C50carb.html Kid Kart Tech Tip Tuning the SHA Dellorto Carburetor Found on Comer C-50 and C-51 Engines No single tuning variable makes more difference in the performance of the Comer C-50 and C-51 engine than getting the carburetor tuned just right. Actually that’s true for tuning just about any engine but especially the tiny Comer engine, which has found its way onto kid karts the world over, since it has such a limited power potential to begin with. In one sense the carburetor has a relatively straight forward task to perform; to supply a properly measured mixture of fuel and air to the engine. My Little Pony Story Of The Blanks. As far as carburetors go the SHA series Dellorto carburetor that Comer selected is as simple as float style carburetors get. The primary means of tuning the carburetor is the single brass jet that is one of the first things that the tuner will see after removing the small black plastic float bowl from the bottom of the carburetor. Even though the Dellorto SHA series carburetors are very simple, they all do not work equally well.