PENGARUH DIAMETER ROLLER CVT (CONTINUOUSLY VARIABLE TRANSMISSION) DAN VARIASI PUTARAN MESIN TERHADAP DAYA PADA YAMAHA MIO SPORTY TAHUN 2007

Abstract

The purpose of this research are: (1) To know the effect of CVT (Continuously Variable Transmission) roller diameter to engine power on Yamaha Mio Sporty 2007, (2) To know the effect of variation of engine rotations to engine power on Yamaha Mio Sporty 2007, (3) To know the interaction between CVT (Continuously Variable Transmission) roller diameter and variation of engine rotations to engine power on Yamaha Mio Sporty 2007.

The research used experimental methods. Techniques of data analysis in this study using the descriptive data analysis graphically illustrates the results of research in the histogram or frequency polygon which connects between the variables.

Based the research can conclude that: (1)  Changes in the size of the diameter of the roller CVT 16 mm is capable of producing maximum power peak in the early rounds of the engine so as to generate a lap down to the more powerful. (2) Changes in the size of the diameter of the roller CVT 17 mm produces decreased power because of too rapid movement of the roller is not in accordance with engine speed so that the workload is too imposing received roller CVT. (3) The use of roller diameter of 16 mm on a CVT motorcycle Yamaha Mio Sporty produce maximum power at engine speed earlier and more optimal than the use of CVT roller 15 mm. On the use of 16 mm diameter roller CVT engine produces maximum power of 4.55 hp at 7500 rpm engine speed, while the use of 15 mm diameter roller CVT produce power equal to 4.54 hp at 7800 rpm engine speed. (4) The use of roller diameter of 17 mm on a CVT motorcycle Yamaha Mio Sporty produce too rapid achievement of resources so that maximum power is not optimal. On the use of CVT roller diameter 17 mm produces a maximum power of 4.48 hp at 7700 rpm engine speed. (5) The increase in engine speed can increase the power generated at the wheel axle to the maximum because the larger the engine speed will cause a centrifugal force generated CVT roller so that the greater the power of the machine can be supplied with up to the axle.The increase in engine speed upon reaching the maximum power to the power generated at the wheel axis decreases.