I have an xt2 with an axial .28 with an economical smaller venturi in the carb,
i was wondering if the smaller venturi which has less fuel getting in, more air gets in to the combustion chamber, having a slighlty larger venturi would add slighlty more fuel in and this would decrease the amount of air in the combustion chamber which would (By this theory) reduce engine temperature if there was a larger venturi?

Would this be true??