I’m at a loss right now of what else to check for. I’ve got a 2000 GSXR 600 SRAD with about 21K miles on it. I was having trouble starting my bike. It would try to turn over and then it would stop with a hard knock sound. Then it would just click like the battery was dying. I would push start it and once it was running it would run fine. I charged the battery and it did it again. I checked the air box and it had oil in it. I decided to clean the carbs and see if that helped. I also checked the compression (all cylinders between 160-170 PSI) and I changed the plugs which all looked to be good but I changed them anyway. I cleaned the carbs inside and out and decided to add a Dynojet stage 1 jet kit and a K&N air filter (I still have the stock exhaust). When I start up the bike it sounds like it’s not running on all 4 cylinders. It wont idle worth a darn now either. I took the plugs out to check them and they were all wet with fuel. When I cranked the engine over with the spark plugs out fuel shoot out of the holes the plugs were in (looked like a fountain of fuel for a second). This tells me I’m getting too much fuel. I’ve check the float bowl level, the fuel petcock/fuel valve, but I’m still getting the same problem. The fuel pump seems to work fine. When I turn the bike on and flip the cut off switch to ‘on’ you can hear the fuel pump work and then turn off just before I start it. I get it to run for a second, but I have to keep giving it gas because it doesn’t want to idle. After I turn it off using the fuel cut off switch I hear a gargling sound like fuel is filling something up (Maybe the cylinders?). When I take the air box off I noticed there is fuel in the air vent lines coming from the carbs going to the front of the air box. I don’t think this should be happening at all. Is there a pressure regulator on the fuel pump that may be going bad and pushing too much fuel into the carbs continually?