I was using a bush hog attached to my 1981 Kubota L275 tractor. I overloaded the bush hog, causing the tractor to stop. Now when I try to restart the tractor, I get nothing - it doesn't even try to crank. The battery charge lamp and the engine oil pressure lamp both light up, but nothing else happens. And naturally I can't lift the bush hog without the engine on. Any help will be greatly appreciated.