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Recent content by ssf4444

  1. S

    Johnson Gear Ratios

    Yes, but it came with a 13x17 prop. I know it needed way more than a 17 form the start though but still, 13 in diameter is only a quart inch bigger but it can take it, im not sure what the size range runs... However after speaking with a guy at a local marina, he said to check the how high...
  2. S

    Johnson Gear Ratios

    Its an aluminum prop, 12 3/4 diameter, bought it used, someone had ported it for hole shot. Speed was done w/ GPS.
  3. S

    Johnson Gear Ratios

    So I have this 140 hp Johnson. Its been having some speed issues (i have had a couple other posts on it.) So for now its got a 21 pitch prop (engine is on an 86 diplomat, the engine is of the same model year i think.) Itll run at 38mph @ 5500RPM. Does anyone know what the gear ratio of this...
  4. S

    prop selection for 140hp out board on Diplomat

    Hello, I have posted another thread in the engines section about a previous problem i was having. It can be found here: http://checkmate-boats.com/forums/showthread.php?t=20228 Basically my 86 Diplomat with 140 hp Johnson was cutting out at higher RPMS and the tach was not working. I since...
  5. S

    1986 Johnson 140

    Thank you to everyone who posted on this. Today I installed a new voltage regulator. The Tachometer now works. I hope to put it in the water this weekend to see if that also may have fixed the cutting out at high rpms problem (at the very I will be able to tell at what RPM it is cutting out...
  6. S

    1986 Johnson 140

    It is cutting out as in its not burning any fuel, Im sure its still turning over and everything, just no propulsion, when the engine slows down enough, it fires right back up and takes off again. It doesnt seem to be "missing." The sometimes, the tach will start to move when first starting...
  7. S

    1986 Johnson 140

    Hello, I have the type of engine the title describes on the same year Diplomat. The bought was bought last year and interior completely gutted and redone before having it one the water. Once complete I did get a chance to get it on the water and well the engine has issues now. So I am...
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