My godfather gave me his 2006 Yamaha FZ6 and it had been sitting out in the weather for years. I drained all of the old gas and replaced it with new gas. I did an oil change and changed the filter. I replaced the fuel pump, all 4 spark plugs, ignition switch, and ignition relay. I did a compression test and there all reading between 120-125. I added fuel injector cleaner to the gas at the correct ratio mixture. I also set the cam timing to where it needed to be. The bike will turn over but will only fire if I use starter spray but it dies in the matter of seconds. What could be the issue?