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  1. #1
    Mdefrates's Avatar
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    It's ALIVE!!! Just finished SL 650 rebuild, and have a question...

    I just took my newly-rebuilt SL 650 to the lake last Sunday, and it was a TON of fun! All the blood, sweat, and tears were worth it! Clocked it on GPS at 42 MPH!

    My noob question to you guys is this: Is it normal for the rear bumper to sit below the water line at rest? I'm not too fat... Haha! Without a rider, the bumper is just barely above water.

    Also, when my girlfriend (also not fat) got on, it wouldn't go more than a few MPH. It would start to go, then I'd hit the gas a little more, and the engine would rev really high without accelerating - as if the jet pump were out of the water entirely!

    Anyone else experience this? Is is a problem, or just something I need to accept?

    thanks!


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    It is normal for the rear deck to be very close to the water on the SL models.

    It sounds like your jet pump is not properly sealed. If there are air leaks anywhere forward of the impeller then it will suck in air bubbles and this greatly reduces the thrust from the jet pump.

    Look up how to correct for jet pump ventilation.

  3. #3
    Mdefrates's Avatar
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    I'm looking through some of your previous responses to people reporting similar problems now... I didn't check any of the through-hull seals yet! Planning on tearing her apart again this weekend in preparation for a paint job, so I'll check it out!

    Is is there a way to check the air-tightness of those without being on the water?

  4. #4
    Mdefrates's Avatar
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    And my apologies if you've already discussed this with someone else. As I'm sure you're well aware, there are a LOT of posts to look through on here!

  5. #5
    Mdefrates's Avatar
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    The more i read, the more I see this is EXACTLY the issue I'm having. Gonna order replacement seals for all through-hull parts. Thanks!

  6. #6
    BlueFishCrisis's Avatar
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    Make sure your ride plate and intake grate are fully sealed with silicone as well. This can allow the same condition to occur.

  7. #7
    Mdefrates's Avatar
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    Ok, cool. Thanks guys! I've bee working all weekend, so haven't had a chance to check this stuff out yet. I'll update when I figure it out.

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