Hey guys/gals I've got a 1990 argo vanguard 6x6 , a couple days in a row I was using it in high 20 deg c temps and after 25 to 30 minutes or use on rough terrain a lot of which was in low gear it shut down! the first time I figured it may be fuel as the level was pretty low but the next day I had a full tank and still the same, I left it were she stopped as it was only a 2 min walk from my cabin and the next day she started right up and ran fine for the 15 mins or so it took me to get out, do you think it's maybe an overheating issue? It's a fan cooled machine! I used it all week leading up to it in much cooler temps and it was fine!