Idle Mixture Screw

[Solace in Solitude]

I saw, in another thread, where Jim said the slight ripple where the Idle mixture screw tapers to a point isn't a problem - but, does the slight curve shown in the picture, below, matter?

Thanks!

 

[Mechnizer]

Looks like someone ran it down too tight.
when you turn the air/fuel needle all the way in does it kill the engine ?
If so the idle fuel circuit is working and the air/fuel needle is sealing.
Totyota sevice manual says to set idle to 550-600 adjust the air fuel needle to best idle, turning in untill idle lowers back out to best idle.

 

[Solace in Solitude]

Looks like someone ran it down too tight.
when you turn the air/fuel needle all the way in does it kill the engine ?
If so the idle fuel circuit is working and the air/fuel needle is sealing.
Totyota sevice manual says to set idle to 550-600 adjust the air fuel needle to best idle, turning in untill idle lowers back out to best idle.

Thanks - no, it doesn't kill the engine and Jim confirmed in another thread that I need to replace it.

Thanks!