Re: 10hp Johnson.

[chinewalker]

Another advantage to leaving them original – you’ll never mix up the wrong fuel tank with your motor and run it at 50:1. Those 10s are very susceptible to wrist pin bearing failure on the con rods, made worse when folks run them lean on oil. If you have pressure tanks always mixed to 24:1 or richer, you won’t have to worry about it.