stalling

Ok need some help here. 2006 290 slx with twin 350 mags. Little back story port engine starter goes out. So I became a contortionist and managed to replace it. Once back in the water everything was good until 5 minutes later the raw water line blew off (hose clamp by the starter failed)...

After running half throttle for 20 or so minutes engine stutters and dies . Won’t start up for 30 min and problem repeats itself . Scratching my head on this

After running half throttle for 20 or so minutes engine stutters and dies . Won’t start up for 30 min and problem repeats itself . Scratching my head on this

New to forum but not new to boats. I purchased a used 2011 Searay 205 Sport from an individual in Florida (140 hrs on clock). I did due diligence prior to buying. Hunted down previous owners and ensured the boat was stored inside or under cover and flushed after each use. Seller was a boat...

Starts fine. Usually gets up to 3,800 rpm range for a few minutes, then the problem starts. The cycle is quick. First the hesitation, then the warning horn, then starts again...that is like 1 second, then 5 seconds later, the cycle repeats. If I pull the RPMs back to 2000ish, the problem goes...

Occasional problems are the hard one's to figure out but perhaps someone has a good answer. My port engine will sometimes stall when the boat is first put into gear. But this happens only at the slip. The engine will lug down and there will brief valve clatter typically heard before it stalls...

I bought a 1999 SeaRay 340 SD equipped with Twin 7.4L Mercruisers Horizons Inboards 760 hrs. I had it surveyed prior to my purchase and other than a few minor fixer uppers, the boat is in good conditions. I am new to boating, so unlike cars and motorcycles, I tend to stress a bit when I am faced...

HELP!!!! Here's the story. I have a 1995 Sea Ray 370 Sundancer with carburated 7.4 BlueWaters(454's). A couple weeks ago I started experiencing rough idle, acceleration, eventually leading over time that the port engine just wont idle anymore. I replaced the spark plugs, coil, cap, rotor...