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  1. MD23679

    "engine sync" on or off?

    NEVER RUN THE BOAT MORE THAN 5 MPH WITH ONE ENGINE OFF !!! IT CAN BACK UP INTO THE EXHAUST PORTS OF THE ENGINE AND FILL THE CYLINDERS WITH WATER AND THAT WILL HYDROLOCK IT. JUST USE WHAT I DO AND YOU'LL BE SAFE ... $15 WOULD SAFE YOU THOUSANDS OF DOLLARS ... ON-OFF VALVE ON THE INLET HOSE...
  2. MD23679

    Lets see your SCARAB!!!

    continuation ....
  3. MD23679

    Lost power to one engine.

    Do you remember the engine temps when you were going 40 ? Above 200 ? Below 210 ?
  4. MD23679

    Lets see your SCARAB!!!

    🤗
  5. MD23679

    Lets see your SCARAB!!!

    :cool:
  6. MD23679

    Lets see your SCARAB!!!

  7. MD23679

    Lets see your SCARAB!!!

    NOCO M10 EYELET CONNECTOR GC008
  8. MD23679

    Rotax 4 Tec supercharger breaks apart at 100 hours???

    From Rotax Manual
  9. MD23679

    Lets see your SCARAB!!!

    I included the website and type of item ... deep blue marine the last post was from ace hardware ...
  10. MD23679

    Lets see your SCARAB!!!

    Installed a catch can added some storage
  11. MD23679

    Lets see your SCARAB!!!

  12. MD23679

    Lets see your SCARAB!!!

    http://www.deepbluemarine.com/products-detail.cfm?ProductID=507 http://www.deepbluemarine.com/products-detail.cfm?ProductID=460...
  13. MD23679

    2017 Scarab 255 w/ 180 hrs - Oil Change

    Moisture build up and condensation if left in engine ... period.
  14. MD23679

    Scarab 255ID - 12” Medallion Screen blank engine runs

    Troubleshoot Guide
  15. MD23679

    Rotax 4Tec 200 overheating

    I'd go with what Luc said . I had my port engine go up till 230F and things didn't go well , but had it fixed and all is good because the parts are available (Thank God) . The cause ? Engine valve failure . I always took care of the boat and NEVER run it more than 30 seconds OWT when I am...
  16. MD23679

    Compression

    specify what engine model you have and year so we can help you out , thanks.
  17. MD23679

    Flushing while on boat lift

    *** When the boat is on the water, I flush the exhaust from the transom plugs (NO NEED TO START THE ENGINE BECAUSE IT WILL NOT HYDROLOCK THE ENGINE) but when the boat is on a lift, i use the lower plugs (start the engine and then turn on the water tap ... for one minute , stop the water tap and...
  18. MD23679

    Lets see your SCARAB!!!

    *** UPDATE (Marine Mat Installed) https://jetboatpilot.com/products/marine-mat-for-scarab-255-open-2018-current-my
  19. MD23679

    Rotax 4Tec 200 overheating

    Check the water pump / thermostate ... Check/replace the water pump housing and thermostat ... I had the same issue at 120hrs and all is good now . I have a twin 250hp closed loop coolant system. It overheats after 6500 RPM
  20. MD23679

    Engine Oil Rotax 4-tec 250 hp

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