I own an '82 Yamaha 750 Maxim. I have single air breathers for my four carbs and I removed the carbs to clean out and install air filters. Before I removed the carbs the bike ran fine, however now it won't start.
I do know the carbs are getting gas to the bowls, and the spark plugs have a spark but for reasons beyond me, I can't get the bike to start now. I have tried starter fluid, and putting gas directly into the cylinders, but I still cannot get it to start. Let me also add, since then, I have removed and cleaned the carbs twice more, thinking I might have missed something when cleaning them.
Can anyone suggest why it won't start?