Oil pump linkage setting

[mcutcher]

I have a '85 200hp (200 ETLK) that is fouling plugs after running about 3 hours. Change/clean plugs and it starts and runs like a champ. I think oil mixture rod and lever maybe a little off. Does anyone know the gap that should be between lever and stop at idle?
Currenty looks like 3mm gap.

Thanks in advance