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Recent content by tgeers

  1. tgeers

    no spark

    If your motor will crank, then you electrical connections are probably ok. If you can't crank the motor try checking battery connections to make sure everything is tight.
  2. tgeers

    no spark

    Robert, I'm not an expert, but I have experienced the same thing with my 1972 Mercury. Mine is much older than yours and has never had any parts upgraded or replaced. So I went through my electrical system and started replacing parts. I am sure you will not have to do everything I did. But...
  3. tgeers

    no spark in 1971 Mercury model 650 3cyl Help

    This boat does not have the old rectangular shaped Cdi switch shown in most diagrams. The Cdi switch is model 114 114-4796 . It is the switch and coils on one platform.
  4. tgeers

    no spark in 1971 Mercury model 650 3cyl Help

    Sorry, My mistake: Serial Number: 3403579, 1972
  5. tgeers

    no spark in 1971 Mercury model 650 3cyl Help

    You folks have helped me in the past, and I am desperate for some help now. This motor has been running great for several years and then all of a sudden no spark. There doesn't appear to have been much in the way of upgrades, so I started replacing parts with the idea of adding life to the...
  6. tgeers

    power trim and tilt for a Mercury model 650

    Hi Guys In the past you have been very helpful in keeping my 1972 Mercury 3cyl 2stroke 65Hp running. I appreciate it. Now I want to add a power trim and tilt to this motor. I have to launch in very shallow water and I'm too old to manually tilt the motor. It has never had one, so my first...
  7. tgeers

    type of oil used in two stroke outboard

    Hi guys I'm curious. Does it matter what type of oil is mixed with the gas in a two stroke outboard? Marine oil for outboards is quite different than regular 10w30. I've used both in the past, but wondered if regular oil is just as good for my motor. As always, your comments are appreciated by...
  8. tgeers

    1972 Mercury Model 650 65Hp two stroke throttle and gear shift cable adjustment

    I have this wonderful 65 hp mercury outboard. The main problem is it is 50 years old. Both the throttle and gear shift cables broke where they pass through the transum to the motor. I replaced them with new cables but now the motor, when on the water, will spudder periodically. Not...
  9. tgeers

    best prop for a new mercury 9.9

    I have a new mercury 9.9 with a three bladed prop. I'm told the pitch is 8.5. The motor is on a small jon boat and I run on rivers that have a medium current. It seems to me the motor will loose rpms sometimes going against the current. I would expect some of that. But is there another...
  10. tgeers

    brand new Mercury 9.9 with low compression and performance.

    I replaced my 1964 mercury 9.8 with a brand new four stroke Mercury 9.9. I followed the verbal and written break-in instructions to the letter, adding even more time to each phase of the break-in. It is on a 10 foot, tricked out with aluminum jon boat. After the break-in I checked the spark...
  11. tgeers

    1963 mercury 9.8 runs good then shuts off. Why?

    I am running 50:1 10w 40 oil. Above are pictures of the cylinder rings. Hope you can make them out. Let me know what you see.
  12. tgeers

    1963 mercury 9.8 runs good then shuts off. Why?

    Is it possible from these pictures to identify what kind of repair kits I might need? I will first try new spark plugs and a compression test. But if that doesn't help, I may have to dig into the fuel supply system. I've successfully done that before with Evinrude motors, but this is foreign...
  13. tgeers

    1963 mercury 9.8 runs good then shuts off. Why?

    It is easy to start, idles good responds to a full throttle when in gear. But periodically it will just shut off. I noticed that the bulb coming from the fuel tank will have little fuel in it, and when I pump it a few times the motor will start right up. To my untrained knowledge of...
  14. tgeers

    Cooling issues

    I have a 1965 9.8 Hp Mercury 110. I've had Evinrudes in the past and I know more about them than this Mercury. There does not seem to be any water coming out of the housing above the lower unit. I checked and replaced the impeller and it turns smoothly when the prop is turned But I don't...
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