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  1. tacx

    Verifying engine serial numbers

    Is there a way to verify that the engine serial number thats on the flame arrestor actually matches the engine? In other words, is the serial number somewhere on the engine itself?I The reason I ask is that the boat is a 1998 but mercury support tells me the engine left their plant in 1995...
  2. tacx

    Confused on repair/maintenance manual

    Hi All, I have a 1998 Harris Kayot deck boat. Engine is a 5.7L 350 serial #0F777836. A Alpha 1 gen 2 drive serial # 0F695548. ​​​​​​I want to get a maintenance/repair manual for both engine and outdrive. I have a couple questions. 1. I see there are several companies that sell manuals...
  3. tacx

    Bilge blower suggestions

    Bilge blower recommendations July 19th, 2018, 03:47 PM Hi All, I have a 23' Harris Kayot Super Dek deck boat with a 5.7L Mercruiser. It now has a 3" inline bilge blower that is popping the breaker after about 5 to 10 minutes of running. Looking to replace it. What are your opinions on ones to...
  4. tacx

    Bilge blower recommendations

    Hi All, I have a 23' Harris Kayot Super Dek deck boat with a 5.7L Mercruiser. It now has a 3" inline bilge blower that is popping the breaker after about 5 to 10 minutes of running. Looking to replace it. What are your opinions on ones to look at and ones to stay away from? thanks in advance...
  5. tacx

    1970 merc 9.8 110 rpm check

    I have the above engine and have gottin it running great, but I don't think I am getting the the most out of my top end wot. How does one check if the engine is running at its maximum rated rpm? Thanks Tom
  6. tacx

    5.7 L Alpha one gen two cooling question

    Hi All, My daughter bought a 1998 22' Harris Kayot deck boat with the 5.7L Mercruiser Alpha one outdrive. Everything is fine but I have a question. Temps run about 139-140 when just slow cruising and wil rise to around 150-160 when pulling a skier or tuber. I think thats OK. But I'm an old...
  7. tacx

    1970 9.8hp 110 mercury kill switch issue

    Hi All, Got a question about the kill fuction on my 1970 9.8hp 110 merc outboard. A little background info...….I picked this motor up a few weeks ago. Sorry no serial number. I know that doesn't help. Please see the attached photo taken when I got the motor. The motor runs great. Old kill...
  8. tacx

    Punctuation, help us help you!

    I'm sorry, but some of these post are so hard to understand only because posters do not know how to use a comma or a period! If you are going to ask for help we need to know where your sentences start and stop. Some of the posts can be read ten different ways!!! So, please use some...
  9. tacx

    Compression test on an older meccury 9.8 hp 110 outboard

    I am going to do a cylinder compression test on my 1970 110 merc outboard. Is there any concern regarding the ignition system when doing the test. I read somewhere that the plug wires need to be grounded when cranking ( by pull cord ) to prevent issues with the ignition system? Or is it OK to...
  10. tacx

    Surface gap versus standard sparkplugs

    Hi All, The plugs in my 1970 9.8 hp 110 mercury are NGK BUHW-2. These are the surface gap type plugs. I believe thats what they are called. After doing some research some have said that these plugs are not the best for good idle? And that if a good idle is wanted that a standard plug should be...
  11. tacx

    Kill button on 1970 9.8 hp 110 question

    How to check the kill button on my 1970 9.8 hp 110 engine. I am wondering if it is the cause of my no start issue. I have read where some buttons are normally closed and some are normally open contacts? My button looks to have just one wire going from the back of the button to up under the...
  12. tacx

    1970 mercury fuel line connector

    Im having trouble finding the correct fuel line connector for my 1970 9.8 hp 110 mercury . I purchased a Moeller #033418-10, but it is too big to fit through the housing opening to connect to the fuel nipple on the engine. I understand that the early connectors were a little smaller diameter to...
  13. tacx

    Flush port?

    Hi All, I have acquired a 1970 or 1971 9.8 hp 110 Mercury outboard. Just below the cover there is a hex bolt/nut/plug? And it says "flush"? Can anyone tell me what that is for? thanks tom
  14. tacx

    Ethanol additive

    I'm confused on the issue of ethanol additives we put in our boat fuels. My daughter bought a boat and asked me " if we have to put ethanol additives in our boat engines, why don't we have to put it in our cars?" I couldn't answer her. So why? Tom
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