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  1. 08-03-2020, 03:43 PM #1
    bigoilman
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    VST Needle condition

    On my 2000 model, I'm chasing an issue with the high pressure pump starving for fuel above 3100 rpm (surges). I've taken the VST apart (again) just to be sure and it looks pristine inside. I do have a question about the needle valve, though. Is it supposed to have a sharp point on it? Mine is blunted.

    1999 Mako 282
    Port - 2006 Optimax 225 Ser. # 1B447039
    Stbd - 2000 Optimax 225 Ser. # 0T054331
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    Last edited by bigoilman; 08-03-2020 at 03:51 PM.
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  2. Savage
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    #2 08-03-2020, 04:19 PM
    No sharp point.

    Rebuild the pulse pump.


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  3. bigoilman
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    #3 08-03-2020, 04:21 PM
    Will do. I've got a kit laying here for it. What exactly does the pulse pump do in such a high pressure system?
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  4. Savage
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    #4 08-03-2020, 04:23 PM
    It fills the VST with fuel.


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  5. bigoilman
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    #5 08-03-2020, 05:23 PM
    Wow. Doesn't look capable of that sort of volume and rate!
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  6. bigoilman
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    #6 08-10-2020, 11:02 AM
    Quote Originally Posted by Savage View Post
    No sharp point.

    Rebuild the pulse pump.
    Thank you, Savage. That resolved the issue.
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  7. Savage
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    #7 08-10-2020, 11:30 AM


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