Pro 785 Oil Injection Block Off Plate WSM 011-208

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  1. #1
    PWCToday Newbie 2KPros's Avatar
    Join Date
    Dec 2016
    Lake Hopatcong, NJ

    Pro 785 Oil Injection Block Off Plate WSM 011-208

    When installing one of these on the Pro 785 do you remove the small gear, spacers, and bushing (parts 8-11 on the oil pump parts diagram for the 2000 Pro - see attached image)?
    What happens if you leave them in place and install the plate?
    The o-ring (part 12) fits perfectly over the projection on the plate. I assume that you put the o-ring over the projection and just bolt it on? any RTV needed?

    I've also read that it'll run a little lean with the plate. This is for a completely stock 2000 pro. Specifically what should be adjusted on the carbs to compensate, and how much? I know look at the plugs and piston wash to check but what is a good starting point? And is 40:1 a good ratio to use?


  2. #2 Is My Home Away From Home Myself's Avatar
    Join Date
    Jun 2006

    Re: Pro 785 Oil Injection Block Off Plate WSM 011-208

    Use a magnet and see if the spacer and gear will slide right out. Might have to rock the pto back and forth a bit. If not then just leave the spring, spacer, and gear in and install the blockoff. No Worries!

    '89 Kawi 650SX 42.4 GPS
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    '99 Yama GP1200 65U 61.8 GPS
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    '96 Seadoo HX 717 53.13 GPS
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