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  1. #1
    Rustymuscle's Avatar
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    RIVA Racing Race Pumps & Stainless Wear Rings For ’20+ Yamaha SVHO



    One of the biggest changes to the SVHO-powered Yamaha WaveRunners for 2020 was almost completely ignored by most media outlets and dealers (but of course, not us at The Watercraft Journal). Not only had Yamaha re-engineered its high performance jet pump so that the wear ring and pump were incorporated into one housing, but replaced the permanent wear ring with a replaceable stainless insert…and increased the overall size to a 160mm from beginning to end.

    More at WatercraftJournal.Com
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  2. #2
    fx160's Avatar
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    Didn’t we find out it’s not really 160 all the way through
    But the same as the earlier pumps
    Starting at 155 and finishing as 160

  3. #3
    Rustymuscle's Avatar
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    Quote Originally Posted by fx160 View Post
    Didn’t we find out it’s not really 160 all the way through
    But the same as the earlier pumps
    Starting at 155 and finishing as 160
    My understanding is that the one-piece 2020 pump is 160mm all the way through.

  4. #4
    fx160's Avatar
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    Quote Originally Posted by Rustymuscle View Post
    My understanding is that the one-piece 2020 pump is 160mm all the way through.
    Was a lot discussion on the for sale post about them not being a true 160 pump


  5. #5
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Rustymuscle View Post
    My understanding is that the one-piece 2020 pump is 160mm all the way through.
    Might want to cross check your source(s) and (re)verify the info you received.

    http://greenhulk.net/forums/showthre...=1#post3055788

    Quote Originally Posted by Green Hulk View Post
    ...


    Yes guys it looks like I got some bad info from a VERY reputable source.

    I was told the new pump was 160mm, which it is, but I was also told previous pumps were 155mm with a 160mm wear ring.

    I am trying to get it cleared up with my info source now, but it sure looks like he was WRONG
    There was also confusion about exacty which cross sections within the stator portion of the jet pump are/were being measured/reported as '160mm'.

  6. #6
    Rustymuscle's Avatar
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    Yeah, I was culling my information from RIVA Racing's R&D dept. not the forum. Either way, it's looking like this setup from RIVA is still the only true way to get a 160mm all the way through.

  7. #7
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Rustymuscle View Post
    ... it's looking like this setup from RIVA is still the only true way to get a 160mm all the way through.
    Quote Originally Posted by SOLAS STAINLESS STEEL PUMP, YAMAHA SVHO/6ET, 160MM/12-VANE
    ... 160mm/12-vane stator section constructed of high-grade stainless steel for superior strength and corrosion resistance. Dramatically improves efficiency and performance for 2019 & older models that come equipped with 155mm pumps.
    Utilizes OEM bearings, seals and driveshaft.
    This is the core thing.

    This Solas? stator is a direct retrofit part for the pre-2020 Yamaha OEM (SVHO only?) jet pump stator and apparently is the only stator available with 160mm ID water flow path.



    Paired with the aftermarket stainless 160mm 'wear ring' the same Solas 160mm stator can be fitted in place of the 2020 OEM Yamaha jet pump one piece combo wear ring+ stator.
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  8. #8
    Rustymuscle's Avatar
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    Moving on...

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