OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines Briggs engine running roughly

Thanks very much for your response grumpy.
The engine details are:
Model...289707
Type....0114-02
Code....960514ZB

I've been using the mixture screw center left in the photo. It originally had a black plastic cover on it.
Thanks again.
Rob.