mpi

Hi All, I am new to Clubsearay, but from what I've seen in my short time browsing different subjects, it seems like there is no better place to go for trouble shooting. I purchased a 1999 34' Sundancer this past fall. It came with twin rebuilt (raw water cooled) Mercruiser 7.4 MPI engines. When...

Hello, I have a 07 320 Sundancer with 350 Mag Horizon engines and for the past year I’ve been chasing an intermittent shut down on my starboard engine. Wondering if anyone else may have experienced the same situation. Some background. Last year our first trip out with the boat the...

New to me, 350 hours each repower I did late last year. LA Fire Rescue engines, but they did sit for a couple of years without being run. I've been fighting some issues where things got mis-adjusted, and some stuff just didn't work. I did refresh most of the ignition just because it's been 20...

My 2007 mercruiser 6.2 mx MPI cranks fine but won't fire up. Batteries are ok. I checked the fuel and the engine is getting roughly 40psi so I don't think the fuel is the issue. Spark plugs seem to be working fine too so I cannot figure out why it won't fire up. Any advice would be much...

Hello everyone, I want to share with you my experience After having the boat stopped in a dry storage for a month when I want to start it and I had 2 beeps alarm every minute on my 2006 Mercruiser 5.0 MPI with 300 hours. After reading several posts I thought it could be the IAC valve, I changed...

03 280da, twin merc 5L mpi. Port motor started sputtering on way home, 45 min ride. It died as approach no wake and would crank but no start. Next day started up no problem but sputters when you goose the throttle. Any ideas?

Whats up thread, I bought this 2005 Sea Ray 220Select w/ 5.0 MPI w/Bravo III outdrive last year from a family friend, awesome boat for the first summer, I had a cobalt dealer (nearest location) do the winterization of the boat because I am unskilled and wanted a professional to do it. Upon...

Bought the boat in 2014 and only ran it during sea trial and winterizing. When we bought the boat I knew there was a problem with the port motor and ended up rebuilding it. During the sea trial and winterizing I seem to remember the starboard motor running very smooth with no issues (of course...

1998 Sea Ray 370 Sundancer with 454 MPI Horizons. Approximate hours -600. Port engine burns 20% more fuel at idle and underway compared to starboard engine. Had a scanner checking for codes and data. There was an error code for a faulty TPS. Also the port engine "surges" up and down in...

I am selling my 1990 220 da. "forty-eight ours" is a 1990 with a 2006 mercruiser 5.0 mpi with 510 hrs, she got a new outdrive in 2013 from Stern drive engineering, SE106, which is equivalent to and alpha gen 1, extended swim platform from swimplatforms.com, nice Bimini tops with full...

Several post about carburetor vs fuel injection, performance and efficiency, definitely some advocate for MPI and other love Carburetors.. and the undecided ones.. I think I will have the answer (at least I will have it soon) Here we go! I'm schedule to do a general maintenance and clean up...

So I'm an issue keeping my engine from running. The engine shut down on me a couple weeks ago while at idle, docking the boat. Couldn't restart. Dug out the fuel pressure gauge and determined I had no pressure, and then realized I couldn't hear the fuel pump prime when the engine switch was...

I have a 2003 200 Select or limited with a 5.0 MPI and an Alpha 1 outdrive. I've had the boat for a little over a year and put about 35 hours on it. I am trying to determine if a whistling noise I hear as I start to throttle up is normal. This happens just in the first 10-20% of the throttle...

65 watt alternator for Mercruiser 350 MAG MPI This is a low hour (~150 running hrs on boat when removed) used alternator from a '98 model year Mercruiser 350 MAG MPI powered boat. I had it professionally checked/cleaned and then kept it for a spare over the course of seven seasons and two...

Hi there I have a 2001 Sea Ray 270 SD with a 7.4L MPI (L29) engine and MEFI 3 ECM. Problem is: When i start her up(cold) she starts very fine but immediately she goes up to about 1800/1900 RPM. When she reaches running temperature, 160 deg she will then drop to about 1000 RPM and then drop...