Upon removing my throttle body, I noted that the linkage and external spring & shaft were pretty gummed up with old dirt and oil.

After cleaning the TB, I wondered if the linkage, spring and shaft assembly is supposed to have any lubrication applied such as white lithium grease or left clean?

Should that external spring and linkage have lubrication applied? If so, what type?

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Naturally aspirated....but I've done the throttle spring TSB on 2. I just put both back together dry.

 

Thanks, I was suspecting it was supposed to be clean and clear of lubrication.

I have a second TB and had the spring recall done by a dealer, and they left it clean and no grease.

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I have used a very light spray lube on the spring, maybe even a silicon spray? I definitely would not use a grease.