I’ve built minimosts with my son, and another with my grandson, both when they were 14. Started them with a 6 HP Evinrude until they learned how to take various waves. The 6 would plane it if you leaned on the deck while it was picking up speed. Used to run a KE7 on the first one. Have run a 1958 10 Johnson and a 1989 15 Johnson on them. The KE7 was nice because you didn’t need a fuel tank in the boat, but needed more frequent TLC to keep it running. The newer motors were nice for kids learning because they had a gearshift so could start in neutral. Since these stock motors usually end up running above max RPM ratings, I double the oil in the gas and go one heat range colder on the spark plugs.
Dave
