Search results

  1. J

    Update to Johnson 1987 88hp SPL running problem

    Let me start by apologizing for not providing the whole story on the problem on the trouble I am having with my 1987 Johnson V4 88hp SPL. I am proving the whole history now along with some results from tests I did this morning. I also want to apologize for starting a new thread but I didn't seem...
  2. J

    Guidance needed on determining fuel pump vacuum reading

    I have a 1988 Johnson 88 V4 SPL w/o the VRO option. Could someone guide me on how to determine if the engine is providing enough vacuum to run the fuel pump correctly. I think I have a carb problem as the top 2 plugs are wet and black. The bottom 2 are a nice brown. That is why I am assuming its...
  3. J

    How do i hook up an external tach

    I have a Johnson 88hp SPL engine. I want to hook up my automotive tach to watch the RPM's. Does anyone know where I would connect the clips. thanks in advanced.
  4. J

    Johnson 88hp cylinder head cover gasket question

    Hi all. I have what seem like a silly question but I want to make sure I put the gaskets on correctly. Service manual for motor says to apply gasket sealing compound to the cylinder head cover gasket and install. My question is: Do I brush the sealing compound to the whole gasket area on both...
  5. J

    Looking for closeup picture of remote control cables on 1987 Johnson 88 HP

    Hi, I'm wondering if anyone has pictures of the shift and throttle linkage cables. I'm looking to see how they are mounted to the bracket on the air silencer. The motor is a Johnson 88 HP SPL(J88MSLCUS). Thanks in advance for any help given.
  6. J

    Spark Gap Test Question

    I saw someone ask about this the other day but never really saw an answer, sorry if it was. When doing the spark gap test I set the tester to 7/16" and verified that the spark jumped the gap on all 4 cylinders. Is it important what color it was or is it just making sure that the spark can jump...
  7. J

    87 Johnson 88HP SPL has no power

    Ok I am back after hand surgery. Helped son put boat in river. It purrs like a kitten while idling. However as soon as you put it in gear and give it gas the motor just bogs right down like it has no power. Between the previous owner and him the following has been done New Power Packs and...
  8. J

    87 Johnson 88 HP SPL Over Heating Update

    I did the following to try and fix the over heating problem I was having 1) Rebuilt water pump 2) Replaced both head gaskets and water deflectors 3) Cleaned out all water passages Idled it for about 15 minutes and then took some readings using a infrared thermometer Results: All 4...
  9. J

    Cylinder Head Bolt question

    I'm ready to install the heads on my 87 Johnson 88 HP SPL(J88MLSCUS). Do I use any type of Loctite on the head bolts. I have the same question about the bolts that hold the inner and outer exhaust covers on. I am referring to the exhaust covers between the cylinder heads. I have both Loctite...
  10. J

    Water Passage Cavity

    Can anyone explain to me the how the water passage section of the motor works. I am talking about the section at the top of the block where the lift bracket is attached. I can see that there a tiny hole at the top of each bank on the block. I am assuming that they go into the water passage...
  11. J

    87 Johnson 88 HP Overheating Problem

    Help please. I am out of ideas. I have an 87 Johnson 88 HP SPL motor. The 2 cylinders on the Starboard side of the motor are running 20 to 25 degrees higher than the bank on the port side. I did the following w/o any good results: - I moved the power pack and coils from the port side to...
  12. J

    87 Johnson 88 HP SPL Shift Rod help

    Ok, I was able to remove the lower unit on my 87 88 HP Spl motor. I rebuilt the water pump and am now having problems putting it back together. I put it all back together and after installing it back together I was unable to get the linkage to connect with the shift rod. May it got turned?? . I...
  13. J

    Cooling Question on a 87 Johnson 88 HP SPL

    Thanks in advance for any help given. I have what might be a silly question but since I am a newbie to outboards I am going to ask it anyways. LOL While running my Johnson 88 HP SPL in a tank I see water being emitted in 3 places. The PEE Hole in the upper part of the engine, the 6 holes on...
  14. J

    Queston about the 2 carbs on an 87 Johnson 88 HP SPL

    I have a 1987 Johnson 88 HP SPL motor. I am wondering about the 2 carbs. Does 1 carb feed 1 bank and the other carb feed the second bank? If I'm not mistaken the starboard bank has cylinders 1 and 3 and the port bank has cylinders 2 and 4. So I guess I am asking if each carb is dedicated to a...
  15. J

    Johnson 88hp outboard problem

    Hello all, and thanks in advance for any help given. I have an 87 Johnson V4 88hp outboard. When first put the boat in the water it runs great for about 10 mins or so. After that it loses most of its power. I've replaced the plugs, wires, and drained all the old fuel out of the tank and...
Top