just picked up a 1997 mercury 50hp 4stroke 50elpt serial number og333420. got from an goverment auction and has sat 3 year without use. drained gas and filled up with 93 octane. changed plugs, oil, and lower unit oil. started it yesterday for first time and had it running and pumping water but would stall out at idle . 2day its not pumping water and still wont idle . probably need new water pump but i have no manuel or part number. any help with part numbers and what else i should do would be appriciated. thanks!
