I think I have a 1977 Merc 70hp thunderbolt two stroke obviously fires right up and idles great but once you put it in gear it stalls and it seems like it’s got a misfire up until full throttle. Any advice?
I did all new fuel lines, but I did not do spark plug wires. I did do new plugs and rebuild both carbs. I still haven’t checked if they’re 100% synced yet, but it ran like this before I rebuilt the carbs.
