Re: 2001,50 hp merc/lost rpm readout and bat ...
Sounds like your stator or rectifier/regulator crapped out. Might want to pull the cover off an look at where all the wires congregate from the stator. The 60 cu. in. (40, 50, 60 HP 3 cylinder 2 cycle)late model Mercs have a problem from the factory where they tie wrapped the wires so tight at the bullet connectors that they short out(sharp edges from crimps on bullet connectors). This is known problem with this particular motor and Mercury will fix it. The parts are PROHIBITVLY expensive as this particular engine has an 18 amp output. Labor is about 2 hours if they have the parts. On the other hand...maybe you jus got a loose wire....check all the bullet connectors for corrosion, spray some LPS 3 on them and put back together. I have one of these engines and manual, let me know if you find the problem. I had the shorted problem with mine and Mercury fixed it OUT OF WARANTY!...The fix is to tie wrap the wires and not the bullet connectors