I have a 1982 XJ750 Seca. Don't know much about its history as I bought it non running. We cleaned the carbs and got it running. Verified there are no vacuum leaks. When we give it a little gas the engine races out of control. I posted 3 youtube videos showing this. Also verified that the linkage snaps back properly. Also verified the slides are not sticking. You can see the throttle linkage in the third video. Any help or suggestions would be greatly appreciated.