Search results

  1. J

    Volvo Penta 5.7 GXI

    Could anyone tell me if Mobil 1 10-30 is a good oil to run in this engine? Would anyone recommend a lower unit oil for a Volvo Penta outdrive also?
  2. J

    Fuel Restriction?

    Took the boat out to the lake this weekend with the new prop and high volume screens installed and this is what happened. The prop worked amazingly well. Holeshot was awesome. All of my gear either slid or rolled to the back of the boat by the time the boat got on plane. The boat almost...
  3. J

    RPM at WOT

    Friend of mine has a '84 Yamaha 225 pushing a 21' Falcon Stiper King. What should this motor be turning at WOT?
  4. J

    RPM at WOT

    I have a 1998 200 Johnson Oceanrunner. What should my rpm's be at WOT? Also, what is the max rpm that would be reasonably safe to operate at for a moderate period of time?
  5. J

    Help me please

    I have a 200hp Johnson Oceanrunner. What is the gear ratio? Thanks in advance!
  6. J

    A prop proplem.

    I am running a 13.5 x 20" prop on a 200 Johnson Oceanrunner pushing a 23' Promaster Striper boat. My problem is I believe I am over-propped. I can only milk about 4850-5000 rpm out of the engine and 40-43 mph at WOT. I know the rule of thumb is 1" of pitch/200 rpm but what about the diameter...
  7. J

    Does anyone know the compression?

    What should the compression on a '98 200 Johnson Oceanrunner? Also, what variances between cylinders is acceptable?
  8. J

    fuel restriction

    I have a Johnson 200 Oceanrunner pushing a 23' Promaster. Where would you begin looking for a fuel restriction? I don't see any lines kinked. Could it be the anti-siphon valve? If so, how do I check it?
  9. J

    Johnson 200 Oceanrunner, check engine alarm and low rpm

    I recently bought a 2000 23' Promaster with a Johnson 200 Oceanrunner. The boat and motor have had nearly no use with the engine only having 20 hours on it. When using this boat it seems as if it has plenty of low end power but lacks top end rpm's. I could only milk 5000 rpm out of this...
Top