2.5 TD 19J Fuel Pump adjustment

I would like to adjust the amount of fuel going into my engine. However I can find no 100% clear pictures or videos about which screw I need to adjust. I have found clear instructions but I am not 100% sure about what I need to adjust. Can anyone help me? Thanks in advance.

Welcome to LZ

Can I ask why? Are you trying to produce more power or more smoke ;-)

Britcyclerider said:

Can I ask why? Are you trying to produce more power or more smoke ;-)

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I wanted to do it for more smoke, but after doing some research and understanding how rare this particular engine is I came to my senses and will leave it alone. Would be bad to ruin such an artifact or an engine.

Alexander_2.5TD said:

I wanted to do it for more smoke, but after doing some research and understanding how rare this particular engine is I came to my senses and will leave it alone. Would be bad to ruin such an artifact or an engine.

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Why?