I need help getting 2 Tecumseh engines running. One is a ASPERA MOTORS TECUMSEH TYPE HT35/A2111. The other is a Tecumseh MODEL H25-25163H Serial 1218B. Both have no spark. I got the flywheels off and took out the magneto/condensors ? Not sure what to call them. Can I buy a whole new part just like what's there ? Is the HT 35 a 3.5 hp and the H25 a 2.5 hp ? Thanks