Running that 1975 Mercury 500 (50hp) inline 4cyl 2-stroke with jet pump after doing everything to it. She's good to go now. 😁👍🏼 | By Outboard Madness | Facebook
1970 Merc 500 Thunderbolt idles somewhat but stalls when put in gear and given throttle. Ugh!
2008 Quicksilver fish 500, EUR 13.000,-
Parting out my 1978 Mercury 500 (50 HP) Outboard ... Parts Only | Bloodydecks
1976 Grew SS-140 With Mercury 500 50 H.P. - YouTube