My72 fj40 will not start. It did start after winter storage but would run maybe on 4 cylinders. I came our of it after a short time. This actually started last fall before I put it in storage. Once the engine was warmed up , it would start and run fine. Now it will not start. It did briefly , sounded like 2 cylinders were running. I tried starting with starting fluid and did not help. Seems like an ignition problem to me. Where should I start? Thank you in advance....