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  1. W

    underwater camera - schematic

    Schematic do you still have that info on your underwater camera design and specs? I read a year old post that had a diagram, but it didn't load.
  2. W

    What's that sound?

    Motor type OMC 115 with VRO. It is a 1994 engine and is called the turbo jet. Engine compression is 120 in all 4 cyl.<br /><br />At idle, and infrequently, there is what sounds like a clunk. It is as though the motor skips just the smallest amount. The sound does not persist but it will do...
  3. W

    power loss - help

    My 1994 OMC 115 will lose power after 20 minutes. Peak RPM drop from 5000 to around 4000. This is consistant at around 20 minutes. Compression is 120 in all four cylinders, coils test with spec. while cold, flywheel indexed and it fires right on for each cylinder. This is a VRO engine and it...
  4. W

    how to I.D. carburator for carb. kit

    I would like to clean and rebuild my carburators on a 1994 OMC 115 Turbo Jet engine. what number do I use for cross reference in getting a kit from siera? There is a number stamped in ink on the top of each carb.
  5. W

    What do fouled plugs look like

    I am familiar with what a fouled plug looks like in a car engine because it is not supposed to burn oil, but what does a fouled sparkplug look like on a 2 stroke engine? <br /><br />Is anyone familiar with the wiring on a COBIA boat? I removed my faria tachometer and now need to reinstall it...
  6. W

    power loss missfire omc turbo jet

    1994 OMC 115 turbor jet in a Boston Whaler will lose power after about 20 min. operating time. Power loss is around 800rpm. Got it to pick back up today. I have replaced a bad spark plug wire, but that did not entirely solve problem. Idles in water at 950rpm which is within spec. Checked...
  7. W

    engine loss of power/rpm

    My 1994 Boston Whaler jet boat is powered by an OMC 115hp. It is basically an outboard powerhead placed in an inboard configuration. Last two outings the motor lost power after appx. 20 to 25 minutes with runs at idle to W.O.T. The rpms decreased from 5000 to 4200. My thoughts are that this is...
  8. W

    loss of power

    My 1994 Boston Whaler jet boat is powered by an OMC 115hp. It is basically an outboard powerhead placed in an inboard configuration. Last two outings the motor lost power after appx. 20 to 25 minutes with runs at idle to W.O.T. The rpms decreased from 5000 to 4200. My thoughts are that this...
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