I picked a late 70s early 80s Troybuilt rear tine tiller. It had been sitting outside since the 80s. I replaced the engine and used it all last summer. It worked great. I also replaced the belts while I was at it. I got it out today and tried to till up the ground. The problem is, as I put the tines to the ground it puts a strain on the engine and the belts will start to slip. The problem is not belt tension I feel it is a gear problem? I drained the gear oil and put in some new 90 weight. but it didn't help the problem. Someone with more experience please help.

Hey: I have a Craftsman LT2000 riding mower with a 20 HP B&S engine. Originally, the riding mower did not have a fuel cutoff valve. It has one of those carbs that has that electrically operated plunger, screwed into the bottom of the float bowl. When I noticed the fuel was going lower on the tank, I found the fuel in the oil and fixed that issue. I purchased an inline valve to fix it and that seems to be working. But my question is, how is it suppose to work? I've verified the float is working, stopping the fuel before it reaches the top of the float bowl with a good needle valve. The float is plastic and does not have fuel in it either (it floats in water). The fuel is physically higher than the carb, so it exerts pressure on the float and needle, but somehow, it is getting past that and into the engine. Of note, the fuel cap on the tank had what looked like someone forgot to put it back on before mowing the yard and it cut a gash into it. Just giving you what I know. Thank you for advice on fixing it; I would rather like to fix the issue because I could forget to turn the fuel off!