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  1. flyingscott

    4Cyl 2Strk lower cylinder won’t fire. Has spark but low compression.

    The sensor is in the tank. Do you have the tach with 3 lights? And yes that 100#s of compression is concerning. But that motor should have had 2 tanks I believe. You might need to buy a factor manual for your motor.
  2. flyingscott

    4Cyl 2Strk lower cylinder won’t fire. Has spark but low compression.

    Look for wires rubbing somewhere? What year Yamaha 115? Are all the linkages moving smoothly? Anything broke? Bad oil sensor?
  3. flyingscott

    Wire location ?

    What color and put up a pic of it.
  4. flyingscott

    Need help Frankenstein

    NO it will not work. 30 hp does not interchange with the 25 Merc built motors. Get off the Marathon and Sea Pro they are just names.
  5. flyingscott

    Can't be that simple

    Yes
  6. flyingscott

    1988 Evinrude loses spark to #4 after quick start drops out

    Do the tests CDI should help you with this if it is still under warranty. 1988 model does not have qwik start.
  7. flyingscott

    Looking for a prop gasket for 2004 Mercury 8hp

    It is perfectly normal for your motor to do that. Stop looking for things to be wrong with it , or sell it and buy a 4 strk
  8. flyingscott

    Is my outboard direct fuel injected?

    Mercury had loop charged V6s in the late 70s. They also had the 18/25 hp motors in 1981. You also called an Optimax a mechanical direct injection which it is not. The corvette was a mechanical injected up until 1965 I believe hardly modern. There were other loop charged engines out there before...
  9. flyingscott

    1989 Mariner, 115hp, four cyl., carb. 9 amp Mod# OC00000268 parts numbers question.

    Something doesn't sound right there. How do you blow a timing light they are inductive?
  10. flyingscott

    Is my outboard direct fuel injected?

    Did you fact check this? OMC never had a patent on loop charging. When did modern cars become mechanically injected? The oil in the fuel is not the biggest emissions problem with carbed 2 strks. It's the unburned fuel going out the exhaust.
  11. flyingscott

    2006 90hp V4 idle issue and running problem

    What is your model #? Maybe run with a timing light.
  12. flyingscott

    Broken magnets

    Make sure any kill switches are working properly
  13. flyingscott

    1981 Mercury 18 hp carburetor 1364-4929

    1399-8154 should be your kit , but make sure you double check
  14. flyingscott

    Suzuki 75hp

    That is a good motor with an excellent oil injection system.
  15. flyingscott

    Broken magnets

    That flywheel is extremely common just buy one and go boating. That will be neither a Marathon or a Sea Pro.
  16. flyingscott

    1991 60hp Johnson Issue

    Look up the Joe reeves method of timing
  17. flyingscott

    2005 90hp Yam no spark.

    I don't think that crank sensor does what you think it does. Hint what else showed up in 1992 Yamahas. But I do like how you and your dad can't do anything by yourselves.
  18. flyingscott

    2005 90hp Yam no spark.

    Show us this crank sensor.
  19. flyingscott

    2005 90hp Yam no spark.

  20. flyingscott

    Suzuki DF 150: which thermostat, 122 or 160 deg F?

    Why would you not replace it well the same one? What does Suzuki recommend?
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