The important stuff- 2 Tecumseh motors HS50-67266H and HM80-155128C. The 5hp is on a Snapper Snowblower and the 8hp is on a Ariens Snowblower. Both have electric starts. The 5hp has a Chinese knockoff starter that is about 4 years old and the 8hp has an OEM starter that is a good 20 years old...