It is better to hear from someone with a G38 in their Stinson but i can tell you with the US41 the only that shows is the spark plug wire in the bottom of the cowl. It should hand start fine but i do use a starter on my US41 even though it has a spring starter. It is a difficult engine to start by hand, once it is running it is fine but here again hopefully someone with a G38 will provide their input.