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Replacing lower unit seals Yamaha 97 200 SWS II

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  • Replacing lower unit seals Yamaha 97 200 SWS II

    My rh starboard engine got water in the lower unit. My mechanic can't get to it for 3 weeks so I am considering a diy. I am mechanically inclined and have done considerable outboard work before, but no LU work. I will then pre-emptively replace the seals in the other engine as well.

    When I look at the schematic, I see there are 2 seals below the waterpump, which I have replaced before on the other engine and 2 seals on the prop shaft. I am told there is another seal for the bearing carrier.

    Do these seals come off easily without special tools?

    How do I clean out the water in the gearcase? Flush it with something?

    I


  • #2
    Re: Replacing lower unit seals Yamaha 97 200 SWS II

    The seals are not hard to remove. You will have to remove the bearing carrier which requires a special tool fr the gland nut. Don't forget the seal on the shift shaft and the gaskets on the two screws used to change the gear lube.

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