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  • ABSRACT COMPARISON TESTING MOTORCYCLE EXHAUST EMISSIONS AND SHELL’S LPG FUELE SUPRA ( HONDA) The aim of this study are (1) To determine the engine exhaust emissions Shell fuel.(2) To determine the engine exhaust gas emissions LPG fuel.(3) To determine the ratio of HC and CO emissions between LPG and Shell on the motor. From this study it can be concluded that the comparison of CO fuel gas shell at 3250 rpm with a load of 500 watts higher is the value of 4,6 % compared with CO gas LPG fuel with a vaalue of 3,9 % and Comparison HC fuel gas shell in rpm 3000 with a load of 100 watts on 815 numbers higher than a value HC LPG fuel is at number 796. Keywords : Shell, LPG, CO, HC.