TY - JOUR TI - Rancang Bangun Alat Tes Busi Motor Di Bengkel Motor AU - Jamaaluddin, Jamaaluddin; Wakhidian, Viete IS - Vol 1, No 2 (2019): Jurnal Eltrik Vol 1, No. 2, November 2019 PB - Universitas Hang Tuah JO - J-Eltrik PY - 2019 UR - http://eltrik.hangtuah.ac.id/index.php/je/article/view/14/45 AB - The ignitionsystemisanelectricalsystemonthe motor thatproducessparks inthe combustionchamber,theIgnitioncoilthatgenerateshighvoltage willgeneratesparkplugs andproducesparksonbothendsofthesparkplugelectrode.Theperfectionofthecombustion processgreatly affectsthemotorworksystem. Sparkplugconditionsmustbeinanoptimal state inorder toprovideagoodcontributiontomotor performance.Giventheelectronics systeminthemotorignitionsystem  canbeausefultoolfor  analyzingsparks.Astable MultivibratorelectronicscircuitusingtheICNE555isusedasasignalgeneratorPWM(Pulse WidthModulation),whichwillservetheinputCDI asasubstituteforpulsermagnet,sothat theelectricalsystem can workwithoutusingmechanicsandcanbeutilizedasatooltobeable toanalyzetheperformanceofsparkplug motorcycle.Becausethesparkplug motorisoneof the main components that playan importantrolein theperformanceof motor fuel.