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  1. M

    1996 25hp johnson questions

    There is a cam on your stator which has timing marks, The rod (i think ) should only control the throttle body at 1/2 till full throttle or something. before that it is the cam on the stator. But first check the woodruff key. You can test it by marking the nut and the flywheel.
  2. M

    1996 25hp johnson questions

    Can you post a picture of what you are talking about? I think you're talking about the rod that is attached to the stator that turns the stator under the flywheel? That is for the timing of the spark.
  3. M

    1996 25hp johnson questions

    If you have a backfire it can break the timing / woodruff key in the crankshaft. If you hav not touched the stator plate ( ignition under the flywheel) than that will probably be good and wil not bind. Flywheel might be spinning on the crank tap now so first check the key. Coughing at low rmp is...
  4. M

    1982 Johnson 7.5hp Backfires but No Start (Wrong Carb?)

    Definitively a wrong carb on this engine. Cam roller is from another style (modern) carburetor than this one. I believe the older 6 hp has a smaller roller. But definitively not the correct carb. Maybe you can get it to run on this carb? there might be a difference in main jet and bore between...
  5. M

    2015 Honda 50HP suddenly dies (sporadically)

    Still no anwser here. The motor doesn't die on us anymore. I do not hear a fuel pump running when I turn the key on btw
  6. M

    2015 Honda 50HP suddenly dies (sporadically)

    Thanks for the replies. I thought I had typed everything but I haven't. Before all this we did some testing. ( My dad dit, it is his motor) squizing the primer bulb after it dies. Checking for water in the sediment bowl, checking for fuel coming out of the connector. We changed out the fuel...
  7. M

    2015 Honda 50HP suddenly dies (sporadically)

    Hi All, A new to us honda 50 hp 3 cilinder Efi runs good and starts good. We have had it for one year now. A couple of times we had a problem that the motor suddenly dies, or suddenly does not start. Besides that it runs and starts great. This does not happen all the time but it looks like it...
  8. M

    Tohatsu MSF20C Spark Problem

    Carb model of injection? tiller or remote? I have a 30 hp. Same year. Is similar to a mercury. Maybe yours is too. Try to find the mercury service manual. And you will find a lot more information on the mercury's. One thing you can do is check if you have resistance over the sensors, ignition...
  9. M

    tohatsu 30hp ecu

    Oke. Got the motor running. For future owners with the same problems: With the service manual I started to measure all the sensors on the big plug to the ECU. Exciter coil & charge coil wires gave a correct reading. This motor has two pulser coils. One of those gave an infinitive resistance...
  10. M

    tohatsu 30hp ecu

    My ignition works. That is also controlled from the ECU. Is that is also powered by the same power source as the fuel injection? If it is the same power source I can conclude that the ECU is bad. I found a manual. It has an exciter coil, a ECU/ charge coil and a charge coil ( goes to a...
  11. M

    tohatsu 30hp ecu

    Hi, I got a 2006 mfs30 tohatsu, 3 cylinder tiller hand start. It is a new to me engine. Sat for a year and the previous owner cound't get it to start over the winter. The problem with the motor is that it wont start ( no fuel in cylinders) If I put some fuel in the top cylinder it will run for...
  12. M

    water in oil 6hp evinrude 4 stroke 1999, need advice

    Some misunderstanding, I took the photos from google to explain the works of the motor. I Have not dismantled my motor. First I was looking for info. Thanks for the reply's
  13. M

    water in oil 6hp evinrude 4 stroke 1999, need advice

    Thanks for the reply, but why clean the valves? It runs good so I have good compression. I can understand that I need to flatten the surface. Also, why a new base gasket? There is no water passage running trough the base. So If it is not neccesary, I don't need to remove the entire powerhead.
  14. M

    water in oil 6hp evinrude 4 stroke 1999, need advice

    Hi, I have bought a cheap outboard here in the Netherlands. An evinrude 6 Hp single cylinder 4 stroke from 1999. This type: Previous owner stated that it had overheated and that it started to lose oil somewhere around the powerhead. He also mentioned that he opened the removed the...
  15. M

    Derating a 5 hp ( ca, 1995 model) to 4 hp

    So then you would get your motor derated to 4 hp ( maybe) and then what? How are you going to prove to the authorities that your motor is 4 hp? You would still be sailing with a 5 hp cowling and 5 hp serial number. In the Netherlands you have to have a certificate to show that your motor is...
  16. M

    evinrude 5hp 4 stroke E5R4SSB water in oil

    Thanks for the reply. I will fix the thermostat, change the oil and try it out. It looks like a lot of water but maybe if i flush it a couple of times with oil I can rinse most of it out. I will keep you posted.
  17. M

    evinrude 5hp 4 stroke E5R4SSB water in oil

    Hi All, I got a, new to me, 2000 5 hp 4 stroke evinrude single cylinder. Motor runs fine and cools nicely but it has water in the oil. Previous owner stated that the motor over heated because of a bad impeller and started leaking oil after the impeller has been replaced. The engine started...
  18. M

    Low compression 6 hp 2 stroke mercury, bad idle

    Hi All, I have an 6 hp mercury 2 cylinder 2 stroke. serial number 09573702. Motor was bought with the note that it would not run on low rpm. Tested is, cleaned out the carb and no avail. Compression test gave 90 psi on both banks ( pretty low in my opinion), spark is good. In order to check for...
  19. M

    Mercury 7.5 hp no start

    I have a problem with a 7.5 hp mercury. It has strong spark and strong compression but does however not start. Carb is clean. When i put Some fresh gasoline in the carbthroat it does not start up. Not even a small puff. Putting gas in the cylinder also results in nothing. Checked the flywheel...
  20. M

    swap rotor 40 hp / 20 hp

    Hi There, I am having problems with a, new to me, 1992 johnson 20 hp starter. Done some voltage drop tests. There is no voltage drop over all connections. Battery puts out 12.5 Volts. It is the battery from my car and that one starts fine so I don't suspect the battery. However, the starter...
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