<![CDATA[The purposes of this research are: (1) to investigate the effect of the use of electrolyzer capacitors on the motorcycle fuel consumption Supra-X 125 cc 2013. (2) to investigate the effect of variations in the amount of stainless steel plate in electrolyzer to motorcycle fuel consumption Supra-X 125 cc in 2013. (3) to investigate the interaction between use of capacitor and the variation in the amount of stainless steel plate in electrolyzer to motorcycle fuel consumption Supra-X 125 cc in 2013. This research used experimental method. The sample in this research used Honda Supra-X motorcycle 125 cc 2013 with engine number JB91E3233452. The research was conducted on Solo-Tawangmangustreet, Jaten, Karanganyar by test the road at a constant speed of 60 km/h along the track 8 km and the weight of rider was 100 kg (ISO 7552-2010). The data were collected by the measurement of the motorcycle fuel consumption with electrolyzer tube addition used a capacitor as filter and the variation in the amount of stainless steel electrode plate, with numbers: 8 plates, 10 plates and 12 plates. The data obtained from the measurement were analyzed using two-ways analysis of variance techniques. The results of this research show that (1) there was an effect of the use of electrolyzer capacitors on the motorcycle fuel consumption Supra-X 125 cc 2013. (2) There was an effect of variations in the amount of stainless steel plate in electrolyzer to motorcycle fuel consumption Supra-X 125 cc in 2013. (3) There was an effect of the interaction between use of capacitor and the variation in the amount of stainless steel plate in electrolyzer to motorcycle fuel consumption Supra-X 125 cc in 2013. The lowest fuel consumption occurred in the treatment of electrolyzer 12 plates with capacitor, it was 13.97 cc/km. The fuel consumption decreased 17.58% were compared with the standard condition.]]>
