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  1. dukboat

    2003 Mercury 25 HP bigfoot gas tilt assist

    My son just got a Tracker boat with a 2003 Merc 25 hp bigfoot 4 stroke. Can someone please tell me how the gas tilt assist is supposed to work. It looks as though it only helps in lowering the motor, are you supposed to let it all the way down or just where it seems to be at the best angle and...
  2. dukboat

    2003 90 HP Johnson prop question

    I have a 2003 Johnson 90 HP 2 stroke on a 19 ft CC. I'm running a 14" dia x 17 pitch alum prop, only getting 4500 RPM at WOT. I can get a good used 13 3/4 diam x 15 pitch for $50 Will this increase my WOT RPM? Thanks for any help.
  3. dukboat

    2003 Johnson 90 HP won't go over 2500 RPM

    Hello, I have a 2003 Johnson 90 HP V4 2 stroke outboard that won't go over 2500 RPM, it like its in the slow mode but it is getting oil, has oil and is not running hot. The self check system at start up is working. Is it possible that there is a bad sensor so the slow system thinks there is...
  4. dukboat

    1988 Mercury 9.9 design 1 or 2?

    Just a question, I need to order some parts for the lower unit on my 1988 9.9 merc ser# ob268183. How can I tell if its a design 1 or 2? The seals and bearing carrier are different between the design 1 and 2. Thanks
  5. dukboat

    1973 Johnson 4 HP no spark

    My kids keep bringing me the projects! They picked up a 73 Johhny 4 hp at a yard sale for $50, the motor looks like new, inside and out. Tried to start and found it had no spark, pulled flywheel and checked coils,(no cracks) look new, set point gap to .20 put flywheel back on still no spark...
  6. dukboat

    9.5 & 9.9 Johnson and Evinrude

    Just a quick question, are the 9.9 & 9.5 Johnson and Evinrudes the same motor? Are the 9.5 just as good as the 9.9? Thanks
  7. dukboat

    1981 Evinrude 9.9 water pump problems

    Hello, I have a 1981 Evinrude 9.9. The water is just trickling out of the telltale, I replaced the pump last fall so I droped the lower and it looks fine. Water is running out where you can see the shift shaft just above where the lower comes off, I'm thinking the upper gromet is shot. Do I...
  8. dukboat

    1951 Evinrude 4424 3.3 carb problem

    Hello, I have a 1951 Evinrude 3.3 4425 Sportwin that has a carb problem. This is the one without a choke, it has a primer button. I push the primer button a few times and it fires up with one pull and runs for a few seconds, if I keep pushing the primer button it will keep running. Does anyone...
  9. dukboat

    62 JW 17 water pump

    Hello, I recently bought a old Johnson 3 hp JW 17 1962 model at a yard sale. I put in in a barrel with water and it fired right up, runs good! There is not a tell tale on this engine, how can I tell if it is pumping water? Is there a port on the power head where you could put a pressure gauge? I...
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