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  1. Q

    Won't idle

    Bad fuel is always suspect this time of year
  2. Q

    '02 Mercruiser 5.0 MPI - Oil pressure switch location?

    Not entirely sure without checking, but I don’t think this engine is affected or has anything related or corresponding, with regards to oil pressure and fuel pumps. Certainly the older carb vortec engines do. Not so sure about these though. I’ve an mpi v8 and know many others locally. Not sure...
  3. Q

    Strange behavior

    Either the fuel line and primer bulb from the remote tank is the wrong way (they only go one direction), or you remote tank has the vent closed…or the remote tank has crap fuel
  4. Q

    1989 Mercury Black Max 150hp outboard Motor Problem

    Here is where my money would be, having the same engine as you… Either bad fuel (despite you saying it’s fresh fuel..if you have some bad fuel left over in the bottom of the tank, fresh fuel doesn’t help much) or your stator or electrical/ battery connections are failing you. If you aren’t...
  5. Q

    115 mercury

    Is this a 2+2 engine ?
  6. Q

    Newer era Mercury 4 stroke cooling temperatures

    Interesting Lou. I’d never even given that notion any consideration. You’ve only got me more concerned now, haha. I live in Scotland and run in a fresh water, almost glacial Loch. Water temperatures range between close to freezing up to about 11-15 degrees C at its warmest.
  7. Q

    4.3 merc water in #5 cylinder

    let her sit for a while after she has had a supply of water to her and ran...then take the plugs out and watch for water coming out number 6. odds on that the water is from the manifold or riser, you would think.
  8. Q

    How does the Mercruiser Shift Switch work?

    In the while I have been about boats, there has been so much confusion about how this works. No doubt the guys above have given you the notion of how it works and you now understand the operation a little better...but I thought I would add my thoughts around your situation... If she is cutting...
  9. Q

    Newer era Mercury 4 stroke cooling temperatures

    She’s actually at her coolest at planing speeds all the way up to full throttle. That’s when she runs at 52 degrees C steady. No change now at 1000 hours than she was at 18 hours and purchased. She’s actually at her coolest at planing speeds all the way up to full throttle. That’s when she runs...
  10. Q

    Newer era Mercury 4 stroke cooling temperatures

    Could be right. My main concern is around her getting suitable enough temps to burn the fuel well perhaps. Although I’ll admit…most of the hours spent with this boat are mainly spent at slower speeds. Then again, at slower speeds not planing, she runs a few degrees warmer
  11. Q

    2009 Mercury F30ELPT Oil leak

    Not sure I think there should be a hole there. Not familiar with that engine though.
  12. Q

    Oil filter help

    eBay has loads of the filter you need. Just checked.
  13. Q

    Removed props

    The engine will have two plates on it like that usually. Giving both options of what the engine can be paired to. That’s all. You will have one of them listed. Presumably the DPS, being a duo prop. You don’t need cotter pins these days like you used to for old school smaller things. But marine...
  14. Q

    Newer era Mercury 4 stroke cooling temperatures

    Haha. Found advice on the beers. The temps are still as they are when she had 18 hours on her and purchased. It’s dead on 52oC when cruising. Around. 53-56 when fast displacement speeds. Just always thought that was considerably cooler than the v8 mpi and all the others I’ve ever known. God...
  15. Q

    cant find out the year of 90hp yamaha

    No worries. Fair point. Not the first time I’ve been guilty of missing details, I’ll admit. Let’s call it quits at that then. There has been enough back and forth already. I’d rather discuss more interesting stuff for sure. I presume we have one thing in common at least ? I’m a huge fan of old...
  16. Q

    Engine Overheating

    How did the impeller look when you took the old one out ? Not too familiar with these, but thought I’d ask if you have a oil cooler in line on the intake cooling pipe between the transom and and the water pump ? I was on a VP engine from a similar age that was drawing air at this cooler and not...
  17. Q

    cant find out the year of 90hp yamaha

    He said that after I suggested it would depend where the fella was from. You’re getting silly about this now. We could all be clever and smart arses with the advantage of hindsight. If only I could go back in time and invest in apple and Microsoft eh ! I’ll bow out on this one now fella. Take...
  18. Q

    No power under load

    Worth probably noting that I’m almost certain this will be the early gen 1 mpi version. Not the usual, later and more common mpi. Different ecu and ignition system used from the common mpi seen from around 2002 onwards. Apparently known for gremlins in their early form like this, I hear. Will...
  19. Q

    03 mercury 50hp 2stroke loss thrust

    Propeller hub would be suspect for me perhaps. Have you hit the bottom at all ? The clicking is normal though. Typical signs of a sacrificed hub are that the motor will run and propel at very slow speeds, but not anything more. Just to get you home
  20. Q

    cant find out the year of 90hp yamaha

    I know I know….these things get the better of me for some reason. All the best
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