Intermittent power loss (need help troubleshooting please)

[trevarthan]

Originally Posted by Grumpy old man

Automatic chokes need to be adjusted correctly , The choke ( top flap on carb) should be closed when engine is cold in the morning and open fully once engine has warmed up . AUTOMATIC DOESN'T MEAN FOREVER

You made me curious, so I filmed two videos showing the auto choke actuation.

The first is manual actuation (short video): https://youtu.be/eWjX0byOYRQ

The second is automatic actuation as the vehicle warms up from 40 degrees F (8 and a half minutes long - skip to the end if you want - turn your sound down - loud): https://youtu.be/94MVneCeIDE

Everything appears to be in proper working order to me, but I don't really know what I'm looking at beyond the whole air - fuel - spark triangle here.