Engine Whine (1 Viewer)

[Catsfan20]

I’m not in tune enough with a motor to diagnose a new sound. Any guidance on what this may be. The YouTube video is the motor after starting this morning. The whine was minimal a week ago now it’s hard to ignore. The noise is concentrated near the carb or atleast that side of the motor.

 

[BGarcia88FJ62]

Kind of sounds like a pilot bearing to me. Depress the clutch see if the sound changes or disappears.
Maybe a squeaky belt or possibly your Idler pulley bearing seizing up.

 

[mongoose2231]

If you're in the rust belt, check your air rail. Mine sprang a whole and was whistling a tune way back when I was driving my 84 gasser. Also, does the noise change in intensity when reving the motor?? Also, what ^^he said.

 

[CRZR45]

Smog pump possibly if you have it.