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  1. J

    Rusted clogged cooling lines in the block 5.7 merc alpha 1 gen 2

    I was told my cooling lines are rusted and some are clogged. How can I clear these lines without removing the motor? Can I flush with acid?
  2. J

    Boat breaks up whil on plane

    I have a mercruiser 454 bravo one. A rebuilt rochester 4 barrell. I was out today cruising when the boat all of the sudden felt like it would start to break up then it would bog down and finally stall. It would become very difficult to start and all of the sudden would start up run rough and...
  3. J

    454 merc bad gas maybe?

    My boat was laid up for thee years. I finally got it out. It stalled on me and could not get it started. I was towed in and replaced the water seperator and noticed a lot of floating debris. I have been putting 30 to 40 gallons of gas in each trip with fuel system cleaner. Do you think this will...
  4. J

    i have a 454 merc hard start

    I just had my 454 mercruiser rebuilt. I have a hard time starting it. I noticed the rod to the choke spring was missing. The marina told me not to worry not a big deal just play with the throttle until it starts. Well I have prolems with it starting. Ist htis just something I can make out of...
  5. J

    yamaha 500 and 650 are they the same block

    I was offered a free yamaha 500 engine for my waverunner III it had a 650 thatis bad. the 500 is rebuilt. will it mount up and are the internal parts the same?
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