I have a 2004 Ranger 520xv with a Mercury 225 Optimax. I have had great use out of the boat with some usual issues. I was on the lake the other day and went to set the jackplate for my holeshot. The jackplate didn't operate up or down. I don't know where to start with the diagnosis and can't find the compoents. Any advice would be greatly appreciated. I have read some thing about the low fluid level can cause an inoperative condition but can't find the reservoir. Thanks for your help.