I have a gs500 so it is possibly a similar design. First, undo the bolt on the bottom of the engine (sump) then on the front undo the bolts for the oil filter be careful, these bolts snap! This will make the oil flow quicker. Make sure to catch the oil in summit, then replace the filter and carefully tighten the cover trying not to snap the studs. Replace the bolt from the sump and add the oil. Your bairings may need to be removed to do it hope this helps
