Hello all. Picked up a 1980 P200E recently and it's beautiful. Everything in top shape with a rebuilt engine. Theres one problem: it starts and idles fine but at low throttle, about the first 1/4, acceleration is kind of boggy/rough. After the first 1/4 engine smoothes out and is very zippy. I've cleaned the carb and jets. Jets are stock sizes. New battery. Wires coming off the stator looks new and in good shape. I don't know what's the next step/place to start.
I also have a '65 150 VBB that I love to ride because engine is smooth from top to bottom. Just really want the P200 to run as well as the VBB. Any thoughts?