BoVuk

Lawnmower runs up and down

My mower engine starts fine but the engine does not run at a constant rate. It runs although it is going through tall heavey grass or like it is running out of gas. I'm a novice at engines and suspect it is a small adjustment but I don't know how.

cheese

Hello BoVuk

It would be helpful if we knew whether this is a push mower, riding mower, what kind of engine, engine model #, etc, etc...