After running my 1538 Mahindra for a couple hours cutting grass, a warning light will come on and tractor will lose some power. Sometimes it will drag all the way down to a crawl until the tractor cools down. The temp gauge shows in normal operating range. Just some of my investigations, I think it has to do something with the temperature of the fuel system. Not many hours ago the fuel filters were changed. Any suggestions or ideas on resolving this issue.