Does anyone have an idea of why our tiller wants to dig deeper and deeper?
It's like we have to muscle it to go forward.

this is an older tiller , but just like the one we had before {son has our old one now- and it never had this problem}

The only thing that seems to be different is the tines are very slim - like they were sharpened a lot by the previous owner.

the tines on our old tiller were fat and not to sharp cause we never sharpened them, they always worked fine as is.

not sure if the adjustment of the wheels should go up or down and same with the stinger- up or down?
tried a few changes and makes no difference.