We have explored the basic theory and quantitative methods for the measurement of motorcycle exhaust using a Fourier transform infrared interferometer system. Remote sensing direct measurements were made and the species carbon monoxide, carbon dioxide, nonmethane paraffinic carbon(CHx) and unburned additional harmful species in motorcycle exhaust were determined. Typical concentrations observed in absorption for carbon monoxide, carbon dioxide and nonmethane paraffinic carbon were about 1.11%, 1.91%, 0.54% respectively. Furthemore, this paper describes the remote sensing Fourier transform infrared spectrometer system. The system covers the infrared spectral region from 700 to 6000 cin−1at a maxim resolution of 0.06 cm−1for beamsplitter of gerrniuiirun coated zinc selenide and receiver telescope with zinc selriide leis. For air multipollutant monitoring the analytica1 methods have the potential and become important. The remote measurements usirig the Fourier transform inf raid spectroscopy could become niore practical.