A null result was obtained for the weight change of a right-spinning gyroscope, contradicting the results recently reported by Hayasaka and Takeuchi. No weight change could be observed under a variety of spin directions for rotational frequencies between 0 and 2.2\ifmmode\times\else\texttimes\fi{}${10}^{4}$ rpm. Our limit of -0.025\ifmmode\pm\else\textpm\fi{}0.07 mg is more than 2 orders of magnitude smaller than the effect reported by Hayasaka and Takeuchi.