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cavitation

  1. 3D_Print_'em

    3D Printed Jet Boat

    Hi all, I have been looking for feedback on multiple forums and came across this one and need some more feedback or suggestions for my 3D printed jet boat. I am making and designing a scaled down electric jet boat for a school project and am focusing on the engineering and development of the...
  2. D

    2009 Yamaha AR230 left engine Cavitation / spinning no power

    Hi Guys I have a 2009 Yamaha AR230 , my left engine feels like it’s spinning , Impeller turns but barely any power produced, - I pulled out my clean out Plug they look great - made sure nothing stuck in the intake grate - I removed the Pump / Impeller etc , left side bearing needs to be...
  3. T

    Transom Plate Alignment Question - Yamaha AR192

    Hello, I have a 2013 Yamaha AR192. I somewhat new to boating and jetboats. I was reading about cavitation and realized that I might have cavitation as the engine rpms got way up, but the boat really doesn't pick up speed so well. So I watched some videos and read some and pulled the jet pump...
  4. eslocum

    Think you have Cavitation? Check your seals!!

    **Warning** By no means am I any kind of mechanical or naval engineering expert... but I think know a little more than my nearest Yamaha Service Location... Had some issues with my 2016 AR240 a four years back where my port impeller started scoring the impeller housing. Brought it to my local...
  5. T

    Yamaha 212 Limited S

    Hi, I am looking to fit Lucky13 cones to my boat and wanted to ask for feedback. Would you recommend installing them? Also if you could tell me which part number is the correct one for my boat. thanks
  6. A

    Cavitation - any tips or tricks?

    Getting some slight cavitation. Where should I start? Sealant is hard and flakes off when I touch it… can I clean everything up with a wire brush?
  7. Bajabugger92

    SX195 Jet pump housing pitting/cavitation issue.

    Hey guys, bought my first boat in January, a 2017 Yamaha SX195, I believe it used to be a rental seeing that it has 630 hours on it. Needed a bit of wrenching here and there but overall it has been a blast, taking it out almost every weekend since May, especially since it’s my first experience...
  8. Miitch

    This left me stranded 6 miles up the coast…

    A beautiful Sunday we had! 0 ft waves as far as the eye can see here on Lake Ontario! Took some friends out to a local beach, got a little crowded, so we decided to leave and head up to the lower niagara River, then cruise on back. (About 10km one way). pleasant ride up, soaking up the sun...
  9. A

    Cavitation/ventilation issue

    So I'm a long time lurker on the here. Finally registered because I've got the infernal cavitation. I've read and watched almost everything I could. This is my first jet boat, but I have turned a few wrenches in my life lol. Backstory.... The boat has never maxed out RP m's I realised it...
  10. Lal4indy

    Cavitation - junk in impeller housing 2008 Yamaha 212SS

    Hi, Having some cavitation/vibration in one engine. When I get her up to 6000 RPM, there is huge vibration and lack of thrust. Pulled off pump housing and found a couple of sticks lodged on. Also found impeller is "dinged" a bit (see epic). Even more interesting, found some "sealant" where...
  11. S

    Severe Cavitation

    I wanted to share I've been chasing a cavitation issue all summer. Last year I sucked up some big rocks and then when going in reverse trying to blow them out, sucked up the tow rope. I replaced the impeller/ring and was back in the water. I noticed some cavitation but blamed it on the...
  12. CORY R MIILLER

    Cavitation?

    I am new to this word. Sucked up some rocks a few weeks ago in my sx240. Now I have full rpm but from a dead stop it takes a while to get up to full speed. Once at full speed no problem. Looked at my impeller from reading up on this. Doesn't look too bad. Little knicked up. Can anyone tell me if...
  13. Peter Alonso

    Should I pull out my jet pump and check for damage?

    So this weekend I experienced a plethora of sucked up debris! Ranging from Garbage bags, leaves, bottle caps, nylon rope, sea grapes. After Multiple trips to the clean out ports, I continued to experience major cavitation and vibration ranging from 4500rpm to 7000rpm. All procedures we...
  14. M

    2017 AR 195 jet cavitation?

    Just bought a Yamaha Ar195. When pulling a skier out it seems to cavitate between 6000 to 7000rpm. Has anyone else experienced this. When the boat is cruising it gos up to 7000 rpm without a problem. The cavitation only occurs when accelerating from a dead stop
  15. Thierry

    SCARAB 195 HOI goes at 10 MPH maximum speed for 7000 rpm and vibrate.

    Hello jet boaters, I just join this community and I have seen SCARABMIKE is the specialist about JET BOATS and the SCARAB here. What a great knowledge ! We just put in the water a brand new 195 HOI and we are having a problem on this boat. After one hour of testing under the break-in period...
    • Thierry
    • Thread
    • cavitation impeller problem low speed problem scarab 195 vibration
    • Replies: 16
    • Forum: Scarab Jet Boats
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