After long research on the internet, this forum is my last hope here. I have an old Honda HF 2213 hydrostatic mower, which has done its job so far. It has 128 hours of operation after 12 years and is simply constantly broken. A quality product. Now the latest problem. The engine runs perfectly also with load so running mower. However, if you press on the pedal to drive forward, the thing sets in motion, but the engine loses immediately on Leistun g and threatens to go out. This can be prevented by not pressing the pedal any more. When driving backwards, the same problem. In many attempts and very slow gas giving, the device then drives suddenly and mows without problems until you walk off the gas, then the same problem. A survey with the dealer found that the hydrostat transmission may have too little oil. However, I have no idea how to check the oil from the hydrostat transmission or how to fill it up. gshandbuch of the Honda mower mixer is nothing to this problem. Since the normal authorized Honda dealer usually does not have a big heck to give hints that are suitable for the customer to repair something himself, it was no longer possible to get out of it. I therefore hope to get help here. Thank you very much for this.