I have actually discovered this problem before I put back the throttle spring.
It would slowly return and that same way as I showed in the video.
I don't know if there was something that was wrong or what but somehow another.
I appreciate the response.
But yeah I had never heard...
The engine throttle returns fine without it running!! but whenever I run the engine. Slowly the throttle returns back to neutral!! It had never did this before.
I don't know what the problem is?????
The only thing I did was reaching out the high speed needle.
Just so when I sell this...