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  1. #1

    FX 140/HO intake mod

    Instead of purchasing the RIVA velocity stacks I modified the factory Yamaha units. Simple to do. All you'll need is a screwdriver, 10mm socket and ratchet set up, and a 1/8 drill bit. It's not as pretty as the RIVA anodized stacks but will do just fine for me .


    http://i243.photobucket.com/albums/f.../random077.jpg


  2. #2

    Join Date
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    Do you have any RPM results yet after the Mods?

  3. #3
    I'm still in the process of breaking this ski in (FXHO 3.3 hrs). I did the same mod to my FX 140 (73 hrs) and it would rev to 10,300 with ease. It also had a better throttle response. It's also a little louder, which I like.

  4. #4
    BarBayBULL BAR BAY H.O.'s Avatar
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    Jun 2007
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    Barnegat Bay
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    1,341
    did the same mod to my FX 140 (73 hrs)
    __________________
    '03 FX140....broke....
    Is this how you broke your FX140?

  5. #5
    Nope. The motor mounts gave out on it.

  6. #6
    Wish I was younger rayk's Avatar
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    Aug 2006
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    Did you change from the stock air filter ?

  7. #7

    Join Date
    Feb 2008
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    Sandpoint,Alaska
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    12

    intake

    I looked at my 2004 FXHO, the drill for the rivets? would you give more details?

  8. #8
    Yes I'm running the Riva filter. And the drill bit that I used to drill the rivets out was a 1/8th inch. Just drill the heads of the rivets off andthe two plastic pieces will seperate.

  9. #9
    Hi Eight Lug,

    I'm looking at doing this on my 2006 FX HO. Have you had any problems with this mod in the last couple years?

  10. #10
    Quote Originally Posted by factionfx View Post
    Hi Eight Lug,

    I'm looking at doing this on my 2006 FX HO. Have you had any problems with this mod in the last couple years?

    i am curious too...

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