what yamaha jet engines in nautica jet rib 10?
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  1. #1
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    what yamaha jet engines in nautica jet rib 10?

    Hi, Could anyone please tell me what jet yamaha engines could have come in a 2001 nautica rib jet 10. I saw something about an 80 hp? I'm assuming 2 stroke? I'm assuming gas? Need engine model numbers if possible. Thanks.

  2. #2
    Top Dog JC-SuperJet's Avatar
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    Re: what yamaha jet engines in nautica jet rib 10?

    Its a Yamaha 701cc 62T/62T 2-stroke engine. Gasoline powered.

    That is a 62T crankcase + 62T cylinder + 62T Dry Pipe; as found in the Yamaha 701 Wave Raider model.

  3. #3
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    Re: what yamaha jet engines in nautica jet rib 10?

    Thank you.

  4. #4
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    Re: what yamaha jet engines in nautica jet rib 10?

    Do you guys know if there are any forum sites for this jet rib inflatable. I'm going to need some help with this thing. The jet pump is missing and
    someone cut and disconnected everything to the motor, which I guess I will remove since it's completely disconnected. But I don't know what goes where to reconnect it all.Thanks.

  5. #5
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    Re: what yamaha jet engines in nautica jet rib 10?

    Picking up this thread again. Boat is all together and running and floating, but have a handling problem. Could someone tell me what yamaha pump would have been on this? Boat had no pump on it when I got it. We put pump in from '97 760 wave venture. fits fine, etc. Problem I have is that when boat comes down on plane, it keeps going down until it's plowing and uncontrollable (at about 25 mph). I'm trying to figure out if the pump could have anything to do with it. thanks.

  6. #6
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: what yamaha jet engines in nautica jet rib 10?

    On watercraft it is common for the pump to be angled down approximately
    1 degree.

    In order for the nose to plow, either the center of gravity is too far forward,
    the pump and/or trim nozzle is pointed down, or the ride plate or trim tabs
    have too much down force.

    The only other thing I can think of is the impeller is cavitating.


    Bill M.


    Is the engine making a ga, ga, ga sound @ wot?
    Last edited by wmazz; 04-01-2021 at 10:50 PM.
    Horsepower == Speed, RPM != Speed



  7. #7
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    Re: what yamaha jet engines in nautica jet rib 10?

    The motor sounds great and wants to go, but I can't get anywhere near wot. By 3000 and about 25 mph, the thing is plowing to the point where it violently digs in and turns and tries to toss me off. Attached is pic of the back of it and a similar boat with same pump. Ride plate is level, no trim tabs. I was looking on Riva racing and see a 2 degree up angle pump wedge for yamaha (worx wro 5004). I will call riva but does anyone know if this will fit my older (97 760 waveventure pump) and whether anyone carries a higher degree up angle pump wedge?

    thanks.my boat rear 1.jpg99 eleven ft..jpg

  8. #8
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    Re: what yamaha jet engines in nautica jet rib 10?

    .....

  9. #9
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: what yamaha jet engines in nautica jet rib 10?

    Make sure the reverse gate is adjusted properly. It should NOT be in the way of the thrust at full up position.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  10. #10
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    Re: what yamaha jet engines in nautica jet rib 10?

    I want to get and try a 2 degree up angle pump wedge and see if that helps my problem. I've contacted a couple of pwc performance places and they don't carry one for my pump (which I believe? is 155mm). Does anyone know who I can call to get a pump wedge for my pump? thanks.

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