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  1. #1

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    2006 Yamaha FX Cruiser HO noise ?

    Purchased at 2006 Yamaha FX Cruiser HO this weekend with 73.2 hours for $2832.50. It has in a saltwater enviornment and needs a little work. The springs broke on the Triton trailer last night when towing it home and allowed the axle to shift back and rub on the trailer fender. It has a few broken parts (i.e. QSTS cables froze, reverse ball stud broke, and glovebox lock is broken. It in severe need of some cleaning and the chrome is pitted. Engine cranks and runs fine, no codes, no warnings on the dash. Seems to have a lot of noise coming from either back of engine or Jet pump area. I am suspecting maybe some bearings, coupling bearings, or something in the gear reduction drive, however I have a 2000 Yamaha SUV and it rattles a lot when running on the hose.


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    See Youtube video of noise here:



    Thanks for any suggestions

    mdavidthomas
    Matthews, NC


  2. #2
    Hmm.... mine sounds almost exactly like that... bought mine used about 5 months ago, thought they all kinda sounded like that; now I'm interested to see if we BOTH have some work to do! Thx,

  3. #3
    powerstroke specialist mikegp's Avatar
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    that sounds normal, what you need to pay attention is if it has the noise on the water.

  4. #4
    yamacruiser's Avatar
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    Some microphones dont capture sound very well but it sounds about right, i have two and on the hose with the seat off they sound like the engine is about to come apart they rattle a lot. Just ride it and make sure everything functions correct also make sure you grease the shaft seal bearing. If the ski has not been taken care of that part most likely was not greased and could fail on you. Do a compression test and water test it.

    BTW Looks like you got a good deal congrats

  5. #5
    Ski Hacks MG's Avatar
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    I have (2) 05/06 Yamaha FX's. Sounds normal to me considering it is out of the water. Run it with (and soak in down inside and out with) Salt-X, Salt-Away or BRP XPS. It will kill off almost all of the salt water corrosion.

  6. #6

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    Quote Originally Posted by yamacruiser View Post
    Some microphones dont capture sound very well but it sounds about right, i have two and on the hose with the seat off they sound like the engine is about to come apart they rattle a lot. Just ride it and make sure everything functions correct also make sure you grease the shaft seal bearing. If the ski has not been taken care of that part most likely was not greased and could fail on you. Do a compression test and water test it.

    BTW Looks like you got a good deal congrats
    Define the shaft seal bearing please. Is this the coupler bearing or are we talking about where the shaft enters the stator(bearing housing)? How do you grease the stator(bearing housing) seal if this is what your talking about?

    Thanks,

    mdavidthomas
    Matthews, NC

  7. #7
    Sounds just like my 2 05's sounded. My 08 doesn't make the same rattle but most of the MR1 skis I have had sound exactly the same. Like other posters, make sure you put a couple of pumps of grease in the coupler bearing fitting/hose. (not too much as you can ruin the seal) The grease is more to keep the water out of the bearing than to lubricate the coupler bearing. You can check the clearance of the impeller and see if there is evidence of it hitting the wear ring but that is a more pronounced metallic sound usually. The coupler bearings (inside the hull on the engine side of the rear bulkhead) rarely go bad unless it has been filled with salt water for a period of time. The pump bearings can go bad and they also make a rattling sound when they do. Being a salt water ski, it wouldn't be a bad idea to just yank the pump out and redo the bearings as a preventative. I can be a job if it really corroded but there are lots of how to posts for the subject. Since it is new to you, just check it over and run it for a while. The only thing you can do to hurt it is to leave water in it. Be sure to blow out the exhaust on the ramp before you drive down the road. These engines stick valves due to corrosion from moisture in the exhaust so the best prevention is to run it as much as possible. Have fun and congrats.

  8. #8

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    Funny thing about the noise, when I started it I had the nose of the ski down because the trailer jack is broken. I then raised the nose with a slight incline and the noise seemed to lessen. My thought is the water in the exhaust may have been making the popping noise. I will pull the pump before heading out to the water and check the bearings for grease and also grease the coupler bearing and all cables. I have a 2000 SUV with the pump out right now awaiting parts because saltwater somehow got past the seals. Does anyone know if the black bottom of the hull or the white top of the hull on the 2006 FX Cruiser HO is gelcoat or paint? The white area has some scratches which show black underneath. Looks more like paint to me.

    Thanks again,

    mdavidthomas
    Matthews, NC

  9. #9
    yamacruiser's Avatar
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    Define the shaft seal bearing please. Is this the coupler bearing or are we talking about where the shaft enters the stator(bearing housing)? How do you grease the stator(bearing housing) seal if this is what your talking about?

    Thanks,

    mdavidthomas
    Matthews, NC[/QUOTE]


    not the stator its in the rear of the engine what connects the motor to prop shaft

    http://jetskidoctor.blogspot.com/201...1_archive.html

    look at the 14.4.10 post 3rd picture

    http://www.pwctoday.com/showthread.php?t=92459

  10. #10
    Quote Originally Posted by mdavidthomas View Post
    Funny thing about the noise, when I started it I had the nose of the ski down because the trailer jack is broken. I then raised the nose with a slight incline and the noise seemed to lessen. My thought is the water in the exhaust may have been making the popping noise. I will pull the pump before heading out to the water and check the bearings for grease and also grease the coupler bearing and all cables. I have a 2000 SUV with the pump out right now awaiting parts because saltwater somehow got past the seals. Does anyone know if the black bottom of the hull or the white top of the hull on the 2006 FX Cruiser HO is gelcoat or paint? The white area has some scratches which show black underneath. Looks more like paint to me.

    Thanks again,

    mdavidthomas
    Matthews, NC
    My 08 sounds much the same on the hose. Its the coupler or gear reduction system that seems to be the source of the rattle.

    All Yamaha hulls and decks later than about 95 are painted. Yours will be sheet molded compound (SMC) which has been painted. If you repair any gouges use an epoxy based repair system. You can touch up the paint with auto paint rattle cans. If you want a close match, Colorite has matching rattle cans and paint, but their prices have gone way up recently: http://www.colorrite.com/wizardresults.cfm.

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