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  1. M

    Testing a Idle Control Valve?

    How do I test it? I have an 02 Merc 115 EFI 4-Stroke. I know its a little stepper motor that moves a pin up and down, But I cant find how to test it? Anyone know how or what voltage it needs to work? Thanks, Mike
  2. M

    Merc 115 vacume leak?

    When I get back from a ride, my merc 115 efi 4-stroke sounds like it has some kind of vacume leak. Its almost sounds like the belt is hitting something, but its not. I cant seem to pinpoint where it is coming from. Any ideas? Mike
  3. M

    TPS Sensor, Torx Security???

    Hi all, I am trying to fix my 115 merc 4-stroke efi and I am trying to test sensors. I notice that the TPS (throttle position sensor) has a torx security screw holding it in under a cover plate. Anyone know why they dont want anyone messing with it? Can I remove it to make sure its clean and...
  4. M

    Testing a ThermoSensor?

    Hi all, How would i test my Merc 115 EFI Four Stroke ThermoSensor to make sure it is working right? Thanks, Mike
  5. M

    Merc 115 EFI 4-stroke Shaking and loss of pwr.

    Hi all, I had this problem last year and I seemed to fix it with a new thermostat. Well it is back again. It shakes and has a loss of power. The weird thing is that after about ten minutes of running, it seems to fix itself and run fine. The thermostat is not even a year old. Last year I checked...
  6. M

    Merc Thermostat?

    Hi all, I took the cover off my thermostat to see If I could test it somehow, and I cant seem to get it out. I cant push the plate in or out either. There is alot of corosion all around it. Is there a way to test it? I have a Merc 115 Fourstroke EFI 02. Thanks, Mike
  7. M

    Removing Fuel Injectors?

    Hi all, I was wondering what was involved in removing the fuel injectors on my merc 02 115 efi motor. I have never removed one before and was wondering if anyone had advice for me before I attempt it on my own. Thanks, Mike
  8. M

    Merc Fourstroke EFI 115...

    Hi all, I am having some kind of issue with my outboard. Its a 02 Merc 115 EFI Fourstroke. It shakes like crazy when I run it. Strats up ok, but when I go to plane off, it shakes alot. I ran it at idle for a half hour before I went out and that didnt help. I have fresh gas in it. I took the fuel...
  9. M

    Merc115 EFI Shaking?

    I have a Merc Fourstroke EFI 115hp. Model #1115F13ZD. Went to go for a ride today and it shakes like crazy. Also has a loss of power. It wont go very fast at wot. I took off the fuel pump and its clean inside. Also has a vacume. I tested it with a guage. Its fresh gas in it also. I took the fuel...
  10. M

    Fuel Injector?

    Hi all, If a Merc fourstroke EFI was having fuel injector issues, what would be the symptoms? Also, what would be a good fuel injector cleaner to run through it? Thanks, Mike
  11. M

    Merc Outboard Issue...

    Hi all, I have a Merc Fourstroke EFI 115, Model #1115F13ZD. I have been having some trouble with it the last month. First off, it seems to stall when going from idle to a little gas when in gear. Like when I leave the dock, I have to put it in gear and not give it any gas right away or it will...
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