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  1. J

    85 Johnson 150... About to drive me Crazy!

    Last year I had a problem with the boat starving for fuel.... After about 20-30mph it would sputter then stall out. I put a small electric fuel pump wired to key switch and for one trip the boat ran great. Next trip same ole thing. I have put a new fuel line from tank, replaced primer bulb with...
  2. J

    85 Johnson 150 GT Tach/Rectifier troubleshooting

    Tryin to get my tach back in working order before i replace the prop and change size. I got 12V behind the tach so i thought it must be my rectifier. Before starting the boat the battery reads 12.5V, after running about 5-10 minutes the battery reads 13.5-14.0 volts, leaving the voltmeter hooked...
  3. J

    Tach question on 85 Johnson 150 GT... will auto tach work to troubleshoot?

    Now that I got my speedo and fuel gauges workin its time to tackle the tach. Now got to read the terminals yet to see if its 14 amps. However the other day I had to boost off my trolling battery cause started bat was near dead. A couple miles up the lake and got out of the water and the starter...
  4. J

    Pitot cleaning? location? 85 Johnson 150 GT

    Im in the process of repairing all gauges on my boat and I replaced the tubing from the speedo. I can blow in it and the needle moves. I found where the tubing fits into the 90 degree on the motor but where is the water intake to build up the pressure? Im wanting to clean it out to see if that...
  5. J

    Gauge questions?

    I have a 79 procraft maidencraft with an 85 Johnson GT 150. As of now I have a trim, fuel, speedo, and tach gauge that do not work. Im wanting to get them all goin so any advise would greatly be appreciated. I want to start with the fuel and speedo. I have checked them on the back and with the...
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