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  1. R

    Gear oil for 290sp

    My manual says to use 30 or 40w engine oil but that was written in 1985. I’ve been using 30w in it but want to know if there is anything better or is 30w still preferred? I replaced the original outdrive 3 or 4 years ago with a rebuilt one so want to do what’s best. Thanks for any help. Robert
  2. R

    1996 200 EFI rpm question

    I have a 1996 200 EFI. The stated rpm range is 5000 to 5800. The prop I have on it now gets me to 5800. Is it better to prop closer to the middle range or even the low range or is it OK to keep things as is? What’s the advantage of going up in pitch to drop rpm’s?
  3. R

    Winter maintenance for so cal

    No need to start it once a month or so? Robert
  4. R

    Winter maintenance for so cal

    I have a new 383mpi and live in Santa Barbara where it never gets below freezing. I don’t use the boat much from November till about February or March. What should I do to maintain it? Should I start it every so often? It’s on a trailer in my driveway. Robert
  5. R

    Symptoms of bad ECU or bad electric fuel pump

    I can’t.
  6. R

    Symptoms of bad ECU or bad electric fuel pump

    I posted a question about issues with my 1996 200hp efi. What would the symptoms be of a bad ECU and or fuel pump? I replaced the manual one and it didn’t change anything. Robert
  7. R

    1996 200hp efi running issues

    Anyone?
  8. R

    1996 200hp efi running issues

    I started having issues where the engine would lose power for a second or so while running down the lake. Sometimes it would run very rough trying to get up to speed but finally “catch” and run ok. I replaced the non electric fuel pump last week but that didn’t help. Today it ran ok for the...
  9. R

    290sp with new Mercruiser 383 MPI noise

    It hasn’t been too long. A few years anyway. Robert
  10. R

    290sp with new Mercruiser 383 MPI noise

    Not sure. I’ll check next time out. Robert
  11. R

    290sp with new Mercruiser 383 MPI noise

    Yeah.
  12. R

    290sp with new Mercruiser 383 MPI noise

    The new engine only has about 15hrs on it. I can’t tell where the rattling noise is coming from but it goes away when in gear. Is this something to be worried about or anything I need to do? Robert
  13. R

    383 MPI noise at idle

    New repower with around 15hrs. Noticed this rattling noise at idle. It goes away when in gear (last half of the vid). I don’t remember hearing this before but could have missed it. Is this anything to worry about, or something I need to do about it? Robert Edit. It’s paired with a Volvo Penta...
  14. R

    New Mercruiser 383 mpi DTS compatible?

    I just Repowered with a new 383 mpi and have it networked to my Simrad MFD with a vessel view link. On the Mercury screen there is troll control and cruise control functions. I’m trying to find out if this engine is compatible with these functions. Does anyone know if the 383 is compatible with...
  15. R

    1996 200 efi starting issues

    I can start it by squirting gas in a cylinder or two and keep it running for a bit by using the push in key for choke modification I did years ago to help with cold starts but it now won’t stay running without having the key pushed in and eventually it will stall. I tried giving it some throttle...
  16. R

    383 mpi storage questions

    I have a new 383 still in the break in period. I think I only have 7hrs on it. Being winter I don’t get out that often so was wondering if it’s sitting (it’s out of the water on a trailer) should I start it every once in awhile or just wait until I’m going to use it again? They say not to idle...
  17. R

    290 square trim gauge issue

    I have an older style square trim gauge that’s having issues. It will say -4 when it’s all the way down for a bit like it’s supposed to but then just start showing random numbers. I changed out the potentiometer to a new one but it didn’t change anything. I had an issue a few years ago where the...
  18. R

    Mercury gateway and Simrad functionality

    I just repowered with a new 383 MPI. I have a Mercury gateway (Gateway CAN-P MULTI, 8949) connecting the engine data to my n2k network and a Simrad Go9 unit connected as well. I have a smartcraft tach that shows fuel burn and fuel used but what I would like is a mpg calculation. The Go9 has an...
  19. R

    1995 efi 200

    Got this message from my son who took our boat out yesterday. Any ideas what the problem might be? “Started fine in the morning both tanks about half full. Smokes like crazy tho at first. Drove around for a bit fairly slow speeds, once I got up past 30mph or so it would very quickly stop and...
  20. R

    Oil for older carbed 350

    I live in Southern California where it rarely gets below 50. I’m usually running the boat in temps between 60 and 75. The engine is 30+ years old but only has about 800hrs on it. It does use a bit of oil each trip. Whats the best type of oil for an older carbed 350 in the above conditions? Is...
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