This past fall, as a college graduation gift to myself, I picked up a 1975 cb750 bobber. It had some issues, but I figured it was nothing I couldn't figure out, being technically adept. I may have overestimated by skills.
Thus far I have worked on the brakes, some other misc work, and cleaned the carbs. The carbs were completely filled with rust and sludge. The previous owner had left it sitting for a couple years without gas in the tank, then to sell it, filled up the tank and fired it up with no fuel filter.... One thing I notice in cleaning was that the idle jets don't seem to have a hole going through them from one end to another. I am not sure if this is just how they are or if they are so clogged with junk that even after cleaning, I couldn't see through them. After trying to push a pin through to no avail, I figured that is how they were supposed to be.
After putting everything back together, it fired up, but is having some major firing issues. With the choke on, it starts up and a couple of the cylinders seem to fire all right, but the other two flood and pop if I rev high enough. As soon as I turn off the choke, the engine dies. What I am hoping to find is some advice from people who are more experienced in the world of these carbs, not to mention some general guidance.
Also, I do not have an air filter in the filter box yet, as I am not sure what kind will fit. Would this be enough to completely mess up my mixture? I will post some pics tonight and maybe, if I am lucky enough, someone will be able to advise me on what filters will fit.
Thanks in advance for anyone that can help me getting this running.
EDIT: Cleaned it up. Clarification.