HELP PLEASE-Poor print quality-stringy not solid

[Colin]

Hi Thanks for looking.
I have a reprap 3d printer which I have just finished building.
The bed has been calibrated and using the stock standard software settings of slicer.

I have attempted to print the gears for an extruder and also a gopro part as a test print.
The parts as you can see are not solid but stringy. I have changed the speed of the x-y from 3000mm/min to 900mm/min and the print is a bit better but far from what could be considered acceptable.

Has anyone any suggestions as to which settings I should change.

material PLA
heat 185c
extruding at 5 mm
nozzle 0.4 mm