u/MathematicianNo2697

Hello, I have a 1974 cb125s, I am running into an issue where the engine is dying on me while I am riding and I am not sure what the cause might be. As you can see in the video if I hit the throttle quickly, the engine starts to bog down and die, the same thing happens while I am riding at high rpm in 4th or 5th gear. It also idles pretty inconsistently sometimes hovering at about 1.5 and sometimes it sticks around 3.5. I rode it all last year and it responded fine with the current jetting, I cleaned the carb and gave it a new spark plug. Any help is appreciated!