Recent content by 28sstony

  1. 2

    Charging problems with 200 Evinrude

    I've got a 1990 200 that I reccently purchased used. After 4 or 5 times out on the water the tach started acting up (needle jumping all over the place). After a few more outings it completely stopped working and now the battery is not charging. I'm thinking rectifier. How do I go about pin...
  2. 2

    Have fuel, compression, and spark still wont run

    78 Johnson 150. Changed the filter, pumped about a gallon of gas into a jug with the primer bulb to check for water and it looked fine. All 6 plugs are sparking on their cylinders and the motor has 105 psi on all 6. The carbs were just cleaned and synched, all 3 bowls are full of fuel and the...
  3. 2

    OMC fuel pump discharge fitting

    I bought a fuel pump for my 78 150 off of ebay, the seller stated it would fit my motor. The pump that I recceived has the same exact body as my old pump but the threaded O-ring male barb discharge fitting is for a small 1/8" hose so I ended up not using it becase all my fuel lines are 5/16"...
  4. 2

    78 Johnson tach not working

    I put a new tach and rectifier on my 78/150hp roughly 50 hours ago when I first rigged the boat. The tach originally worked after the boat ran for about 20 minutes. Now the needle will jump a little when the engine first fires but then drops back to zero. So basically its not working at all...
  5. 2

    78 Johnson 150 starting issue, lack of or excessive fuel

    So aside from having a perfectly running motor last time I ran in July I decided to replace all the fuel lines on the motor, pull the carbs off split them and spray/ blow them out despite rebuilding them less than 100 hrs ago. I broke and replaced the top fuel pump in the process. Its had half a...
  6. 2

    78 Johnson fuel pump and spark plug questions

    Ive got a 78 150hp Johnson that Im going through before an annual fishing trip south. This boat gets used twice a year and I like to make sure its in tip top condition before my trip. Having heard a few horror storries about the newer ethanol fuels, I pulled off a carb to get a peek inside and...
  7. 2

    Carolina Jack Plate

    Anyone ever heard of them? Do they make a quality product?
  8. 2

    Intermittent tach problems 78 OMC

    I reccently rigged a 78 150 Johnson on my boat and the tach didnt work, I replaced the rectifier and it worked for a while. Now it works about half of the time, sometimes ok, sometimes the needle is jumping around. The harness and wiring is 100% new, the rectifier is new but the guage looks to...
  9. 2

    78 Johnson 150 no reverse

    When I bought this motor a few weeks ago I saw it run and shift just fine before I bought it. When I rigged it on my boat I used a different set of controls and cables that was already on the boat(same year OMC, just top mount instead of the side mount that came with the motor. The very first...
  10. 2

    Copper water tube replacement on a 78 150

    Ive got a severely mangled tube on my 1978 150 Johnson. How do I go about replacing it? Obviously it doesnt just pull out.
  11. 2

    78 150 Johnson Sierra water pump kit

    I bought the kit and upon assembly I realize that the plastic pump housing is slightly different from the original. The original has as main drive shaft seal in the outer top part of the housing. On the new Sierra there is no place for this seal to go and from what I can tell no other parts...
  12. 2

    OMC tach problems

    I finally got my 78 Johnny 150 rigged on my boat, everything works fine but the tach. The tach zeroes when you turn the key on, so there is power to it, just no signal. The grey wire from the tach is properly wired to the grey wire on the motor. The tach looks original to the boat which is...
  13. 2

    OMC tach plug

    Nevermind, Found it.
  14. 2

    Wiring Questions on a 78 150 Johnson

    First a little background, I bought an unpowered 78 Whaler, with what appears to be original Evinrude top mount throttle/shift controls and a seperate key switch. As luck would have it I picked up a 78 Johnson w/out controls but it came with the remote control box and the engine end of the...
  15. 2

    A few questions on a 1978 150 Johnson

    I just brought this thing home last night and plan to hang it on my Whaler tonight, what spark plugs, brand/plug# should I be running in this motor? Also what is the fuel/oil mix ratio?
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