Motorcycle Repair: can i use big carbureter for my 4 stroke bike to enhance its speed, honda cg125, stock boots

Question
the bikes carbuerator is of the company assembled can i use any big carburator to enhance its speed or you give me any other tip to enhance its speed the company is honda CG125  

Answer
Nasir,
 You can try another carburator with a larger barrel opening but you would have the problem of mating them to the air box and cylinder intake.  The stock boots might be to small.  You can eliminate the air box and add aftermarket cone type filters.  Beware that the new carbs must have the same propoties as the old regaurding vaccuum lines and such.

Mike