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  1. #1
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    wondering if it's going to be a problem down the road

    Just wondering once everyone starts adding a lot of power and speed to there FZR and S if it's going to be an issue with just 2 bolts on the shoe end and not 4 like the SHO has. Hopefully shoes don't start ripping out or breaking i guess time will tell.


  2. #2

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    I don't think there will be a hull problem since the rear of the shoe is attached to the transom plate and not to the hull as a SHO or a GPR is. This was a good design improvement by Yamaha since the downward force is no longer trying to pull the bottom of the hull down. Now the downward force is put on the transom plate which is much stronger than the four hull inserts on a sho/gpr where the shoe bolted on in the past. I supect some of the tunnel cracking I have seen on gpr's was caused by this downward pulling force caused the tunnel to crack on these gpr's and not just the tunnel pressure or a combnation of both pressure and the pulling down pressure of the shoe where it bolts to the hull on gpr's. I guess time will tell if yamaha has corrected this problem. Tommy Jordan

  3. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Very well explained Mr. Jordan Hopefully Yamaha did cure that problem with the tunnels cracking.

  4. #4
    KamikazeGPR's Avatar
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    Tommy, I have a question for you.

    I've only had my FZS out once but when i put it back on trailer i looked underneath. The tab for the rear mounting bolts for the grate that sits on the transom plate is sitting about .70 lower than transom plate.

    Is that normal? Does the tab just overlap the plate or is it recessed and my bolts are coming loose. I'll check them before i take it out again. But since you've been under there more than i have was just wondering.

  5. #5
    krenzema's Avatar
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    Kami,
    Can you post a picture next time you see the ski?

  6. #6
    KamikazeGPR's Avatar
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    Quote Originally Posted by krenzema View Post
    Kami,
    Can you post a picture next time you see the ski?
    Yes, tomorrow i'll crawl under and check the tightness, if they're tight, ill take pics and show ya.

    Just seems lazy they wouldn't recess it. It's lower than hull.

  7. #7

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    Talking

    Quote Originally Posted by KamikazeGPR View Post
    Tommy, I have a question for you.

    I've only had my FZS out once but when i put it back on trailer i looked underneath. The tab for the rear mounting bolts for the grate that sits on the transom plate is sitting about .70 lower than transom plate.

    Is that normal? Does the tab just overlap the plate or is it recessed and my bolts are coming loose. I'll check them before i take it out again. But since you've been under there more than i have was just wondering.
    I cut.070 off the two mounting bosses on the shoe/intake grate at the back and at the same .070 on the front of the shoe/grate where it bolts to the hull on the top side to keep it level now everything is flush. The Riva/R&D need to be checked and have the same thing done to them "IF "they hang down Too! Tommy Jordan

  8. #8
    DP.'s Avatar
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    Here's what i found, the bolts that hold the intake up can be screwed in about 4mm more(roughly about 4 threads) so i got some longer bolts and mounted the intake back. It seemed that you have to check on these bolts pretty often. I did locktite them and sealed the intake.
    The first pic shows how much more the bolt can be screwed in and the second pic shows the distance the bolt is when the grate is installed.
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  9. #9
    KamikazeGPR's Avatar
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    Here ya go. Quality control must've been at lunch!

    Quote Originally Posted by krenzema View Post
    Kami,
    Can you post a picture next time you see the ski?
    The nickel measured .60 on digital caliper. So milling off .70 it is.

    Thanks tommy
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