Recently got a T-maxx from a friend who kinda abused it. I cleaned it and fixed it up but it still won't start. I've tried everything, pull start, electric start, checked and swapped out glowplugs and ignitors. I think the problem may be my gas. The gas I have is probably over a year old and when I went to start my xxx-nt, no go. Any other ideas on what it could be?