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Thread: Honda overboard

  1. #1

    Thumbs up Honda overboard

    My Honda BF2D bounced off the transom and into the water. I pulled the carb, cleaned it out, changed the oil but no luck. I, check for spark by taking the plug out with the wire attached and pulling the cord but no spark was seen. Does the plug need to be grounded to the motor in order to see spark ? What could I check to find the problem.

    Thank you
    Ed Fisher

  2. #2
    Join Date
    Sep 2010
    Posts
    19,495

    Default Re: Honda overboard

    Why of course the plug needs to be grounded to the block.

  3. #3
    Join Date
    Mar 2009
    Location
    Cincinnati, OH USA
    Posts
    4,398

    Default Re: Honda overboard

    If you do not get spark, after you ground the spark plug, make sure the safety landyard is attached. If it is, disconnect the wire from the landyard, to take it out of the circuit. It is possible that the water caused a short inside the switch, inhibiting the spark.

    If you get spark and it still will not run, double check the carb gaskets. They easily slip out of position when you put things back together.

    If the motor was running when it went into the water, then you may have some bent valve push rods. See part #4 http://www.boats.net/parts/search/Ho...AFT/parts.html

    They bend very easily. They are also easy to replace or maybe just straighten out (replacing is preferable). You do have to remove the power head to get the valve cover off...but it is not that difficult to do.

    Mike

  4. #4

    Default Re: Honda overboard

    Thanks Mike
    I really made a mess of this. I have a shop manual and removed the coil because I thought I had no spark because I did not have the plug grounded. After I replace the coil and find spark, then how do I know if I have bent valve push rods ?
    Edfisher

  5. #5

    Default Re: Honda overboard

    Thanks Mike,

    How do I know if the push rods are bent ?

    Edfisher

  6. #6
    Join Date
    Mar 2009
    Location
    Cincinnati, OH USA
    Posts
    4,398

    Default Re: Honda overboard

    Compression being way off is one way to see if something is wrong. The only sure way after that, that I know of, is to check valve operation and clearances. If the valves do not move, then at least the push rods are bent. They are the weakest link in the chain.

    Mike

  7. #7

    Default Re: Honda overboard

    Quote Originally Posted by Edfisher View Post
    Thanks Mike,

    How do I know if the push rods are bent ?

    Edfisher
    Was the engine running when it went in the drink, or was it stopped before it went overboard? If it was running, then most likely it hydro-locked and bent the connecting rod http://www.boats.net/parts/search/Ho...ROD/parts.html . Most likely the valves and push rods would be fine. The connecting rod is made of aluminum and bends easily.

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