I pulled the starter and checked it on a battery. The starter works fine hooked up to the battery. Looked in what I could hole the starter goes in at the dual gear it meshes with. What I could see of it, the teeth look good in that small sample size. Reached in to see if I could turn the gear. I could easily turn the gear with just my finger. I shouldn't be able to turn that gear with my finger. I've contacted Nflow, as this is where I bought this new engine that has 4 miles on it!