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  1. Replies
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    http://greenhulk.net/forums/attachment.php?attachm...

    http://greenhulk.net/forums/attachment.php?attachmentid=457165&stc=1http://greenhulk.net/forums/attachment.php?attachmentid=457166&stc=1http://greenhulk.net/forums/attachment.php?attachmentid=457167&s...
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    1.8L oil pumps SVHO/SHO

    What changes have been made to the oil pumps over the years? What was the reasons also?
  3. Replies
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    149

    Yamaha 1.8 THROTTLE BODY ASSEMBLY (ETV)

    What is the difference between the HO and SVHO ETV? Can I use one from a HO engine on a SVHO engine? Its A 2015 SVHO and HO engine


    Thanks
  4. Replies
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    Thanks for the Help. I have the engine apart so...

    Thanks for the Help.
    I have the engine apart so I can't check it with the starter installed. I just ordered all the tooling need to remove the flywheel assembly. I'll see what I find when I get it...
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    616

    OK thanks. The manual said not to reuse the...

    OK thanks. The manual said not to reuse the Flywheel magneto. HAs anyone reuse it?
  6. Replies
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    616

    Starter Gear Movment on crankshaft

    http://greenhulk.net/forums/attachment.php?attachmentid=456893&stc=1

    Is it normal for gear number 18 to slide forward and backwards on crank shaft? I tried posting a video but wasn't able.
    ...
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    116

    SVHO engine and tune into a VXR ECU?

    Can I use the VXR ECU with a reflash of a SVHO tune into the VXR ECU?
  8. Difference between a HO and SHO cylinder head

    What is the difference between a HO and a SHO cylinder head on the Yamaha 1.8L engines? Can the HO head be used on a SHO motor?

    I know the part numbers are different.

    Thanks
  9. Replies
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    Impeler OEM or Aftermarket

    I have a 2015 VXR. Im trying to decide on to use the solas impeller or install the OEM. I have the Riva stage one mods done on this ski

    Thanks

    Kurt
  10. Replies
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    Riva Power filter

    How do I keep the power filter to stay in place. I was riding in the ocean yesterday day and when i returned it was laying in the bottom of the hull. Its on a 2015 VXR.

    Thanks
  11. Replies
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    As for the RPM's I'm going by the stock gauge and...

    As for the RPM's I'm going by the stock gauge and its all just a black bar above the 8K range.. But I'm not hearing the ski hitting the rev limiter. Im also hearing a lot of talk about impeller from...
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    Thanks James, You are seeing the same issues I...

    Thanks James,

    You are seeing the same issues I am. With the Maptune X and the 11/15 solas and two people on the ski and chop. I still was able to achieve 64MPH. Im thinking of sending my impeller...
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    http://www.greenhulk.net/forums/attachment.php?att...

    http://www.greenhulk.net/forums/attachment.php?attachmentid=438931&stc=1

    Is this the bend you are talking about? This is how i received the impeller from Riva.
  14. Replies
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    Im going too say with the ECU reflash the ski...

    Im going too say with the ECU reflash the ski feels like a totally different animal. The acceleration is awesome. I have to see if the impeller clearance is within tolerance, The speed I'm seeing...
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    VXR 2015-2017 engine cooling up grade

    Has anyone installed the Riva engine cooling upgrade on there ski?

    Thanks
  16. Replies
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    I finally was able to get the ski out this...

    I finally was able to get the ski out this morning. With the maptunerx and the 11/15 impeller I hit 65MPH and no cavitation. Im going to try the stock tune later today. The only issue i saw with...
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    Im going to try this weekend. i installed 11/15...

    Im going to try this weekend. i installed 11/15 with the Maptuner X. Ill let you know
  18. Replies
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    Did you ever run the ski with the 11/15 solas? I...

    Did you ever run the ski with the 11/15 solas? I just received mine and waiting to install it..
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    http://www.greenhulk.net/forums/attachment.php?att...

    http://www.greenhulk.net/forums/attachment.php?attachmentid=438548&stc=1
    My shop manual shows 15.6 for the 2015 VXR
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    2015 VXR impeller pitch

    Im looking at my VXR shop manual and the pitch is showing 15.6 degrees. i thought that the impellers are a variable pitch.
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    VXR MOD's 2015-2017

    What mods dose everyone have on there VXR's. Also are you using the OEM impeller or aftermarket. Looking to see what is the best direction for me to go for performance gains.

    Thanks
  22. Replies
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    Thanks, The plugs are new and Im using the riva...

    Thanks, The plugs are new and Im using the riva K/N filter with the breather Kit.
  23. Replies
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    548

    Did you ever resolve the issue? I having the...

    Did you ever resolve the issue? I having the same issue.
  24. Replies
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    RIVA Rear exhaust

    Who is using the Riva Rear exhaust and what are your thoughts?




    https://www.4-tecperformance.com/images/RY15061.jpg
    RIVA Yamaha GP1800, 2015+ VXR/VXS Rear Exhaust KitOur rear exhaust...
  25. Replies
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    Spark Plugs on a 2015 VXR

    When do you replace your spark plugs on a 2015 VXR?
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