pump wedge for 90's yamaha
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  1. #1
    PWCToday Regular
    Join Date
    Jul 2018
    Location
    Coastal, NJ
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    129

    pump wedge for 90's yamaha

    Hi, I have a post on the yamaha section but it might be more appropriate here. Need a pump wedge for a 90's yamaha waverunner or similar. Who makes one? cause I'm only seeing listings for newer 1.8 motor pumps

    If no one does, and I have to have a machine shop make them, what size pump do I have (155mm)? and are there any pictures showing how thick a typical pump wedge is at the top. I assume as thin as possible but need numbers for a starting point for the machine shop.

    thanks.

  2. #2
    PWCToday Regular
    Join Date
    Jul 2018
    Location
    Coastal, NJ
    Posts
    129

    Re: pump wedge for 90's yamaha

    updating this post. I have a 155mm late 90's yamaha pump with a 5 degree up angle nozzle. Even with the up angle nozzle,The 10 ft. jet boat this driveline is in still puts nose down too far and plows. the driveline is tucked way under the boat and I'm wondering if the jet wash is hitting the very back underside of the boat and forcing the nose down. The nozzle I have is not original to the boat so I'm wondering if it would have had a"straight "nozzle.thoughts please. Thanks.

  3. #3
    PWCToday Regular
    Join Date
    Jul 2018
    Location
    Coastal, NJ
    Posts
    129

    Re: pump wedge for 90's yamaha

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