I know this is kind of vague and hard to diagnose but I’m hearing this high pitch noise almost like something is rattling so fast that it’s screeching. It only happens after about 33 mph and starts winding up louder and louder. Also I’m only able to go 38-40 on flat ground with it screaming so loud. Ive tried different kinds of trans fluid, Messing with clutch springs, bought another 2 shoe clutch from the buy/sell, checking for air leaks, nothing is stopping it. Could it be that bearings are shot? I had a similar post a few weeks ago, don’t mean to overload the forum, just am lost at what this could be.
15mm bing clone carb and intake - 80 jet 2nd to richest needle setting
Metal mesh air filter
ESO springs at around 25 pounds
New spark plug
Brakes not engaged
17 40 gearing