Journal of Business Studies and Economics (JBSE), 2019; 1(1) : 155-173Business establishment, specifically by fresh graduates and other young entrepreneurs in Tanzania, is faced by an inadequate access to business support services (BSS). This paper empirically analyzes the presence of motivation as a potential gear on starting new businesses by incubated young entrepreneurs. A total number of 30 incubatees from two universities business incubation centers, (i.e. the University of Dar es Salaam and Sokoine University) were surveyed and two incubation managers were interviewed. The findings indicate that there was a significant association between motivation and BSS (p<0.05) and Cramer’s V=0.136). There was also a strong association between motivation and marketing and business management (p<0.05, Cramer’s V=0.507); motivation and mentoring and coaching (p<0.05, Cramer’s V=0.676). This implies that marketing and business management (factor 1) and mentoring and coaching (factor 2) motivated young entrepreneurs to start new businesses. The more marketing and business management skills together with mentorship and coaching were extended to young entrepreneurs, the more motivation was imparted to young entrepreneurs to start new businesses.