Boat is a 1984 17' Sunrunner with a 1984 mercruiser 140 inline 4cyl 3.0L engine.
Single adjusting screw mercarb 2bbl
I purchased The boat about 3 months ago, the first couple times I took it out it ran great, cold started good, didn't miss fire, idled smooth, restarted warm good.
I noticed...
