Recent content by msd58

  1. msd58

    1997 Yamaha C90 Two Stroke Reverse Noise

    I wanted to follow up on this thread as I pulled apart my lower unit. The dog clutch teeth are worn down. Reverse gear looks OK. I have attached pictures of the part
  2. msd58

    How do you design correct Bravo III ratio?

    I don't think 350 hp is a big enough jump to justify the expense. Just rebuild your 7.4 Now a 8.2 with 380 or 430 hp is a different story. Of course I would love more power but at what cost? You could just fix your motor and sell the boat and get a twin engine boat will twin 5.7s
  3. msd58

    How do you design correct Bravo III ratio?

    Most of - if not all of the 2855's I have come across that have the 7.4 motor have 24" props.... that would include mine. Dealer told me that my boat came with 2.20:1 Bravo 3. He verified that my hull # with Bayliner. A lot of guys who's engines die go with the 6.2 I have not read where they...
  4. msd58

    How do you design correct Bravo III ratio?

    Yes
  5. msd58

    97 Outboard C90 Water on Plugs

    Not bad for a 1997 I think. I read where some newer models than this in four stroke had some pretty widesprrad corrosion. 4 stroke motors.
  6. msd58

    97 Outboard C90 Water on Plugs

    Update. Hole found in upper end of inner exhaust plate
  7. msd58

    97 Outboard C90 Water on Plugs

    Sorry wrong terminology. It's the air intake silencer that had the milkshake in it.
  8. msd58

    97 Outboard C90 Water on Plugs

    Here's a new twist. I pulled the spark arrestor off this AM and the bottom was filled with a milkshake!
  9. msd58

    97 Outboard C90 Water on Plugs

    Thanks! Yes all three plugs have signs of water.
  10. msd58

    97 Outboard C90 Water on Plugs

    Top plug was 105, middle was 120 and bottom was 120
  11. msd58

    97 Outboard C90 Water on Plugs

    See explanation below pics My C90TLRV started to run rough. As if running out of gas. After eliminating the possibility of water in fuel or bad fuel I did a compression check and the middle and lower plugs are clean but I can see water droplets on the plugs. Top plug looks better but I can see...
  12. msd58

    1997 Yamaha C90 Two Stroke Reverse Noise

    Well I did what you told me and adjusted the shift linkage. It was only off by a tiny bit. It still makes the same noise when you apply the throttle in reverse.
  13. msd58

    7.4 Mercruiser Engine Life Expectancy

    The first set of numbers were cold. Second set I don't know if it was hot or cold when mechanic took them.
  14. msd58

    7.4 Mercruiser Engine Life Expectancy

    It's now 2024. The engine has close to 800 hours on it. Oil pressure good, same as it always was. Compression 140-145 psi. Last time compression was tested at 325 hours it 160-175 psi cold.
  15. msd58

    1997 Yamaha C90 Two Stroke Reverse Noise

    Thank you for the great advice.
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