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  1. beckoning

    Merc 9.9 air screw

    2010 Merc 9.9, single carb. 90% of my running is slow speed. The local Merc dealer said I need to lean the mixture by adjusting the "air screw" which is apparently on the intake manifold, near the carb. I want to adjust it 1/4 turn. Which way (clockwise or counterclockwise) do I turn to make...
  2. beckoning

    2010 9.9 kicker

    My 2010 Merc 9.9 4cycle kicker seems to run fine for 15 minutes, then seems to load up and start running on one cylinder. If I rev it up for a few minutes, it finally clears and runs smoothly. Could it be a bad plug, maybe water in the gas? Don't know if it has carb(s) or EFI. If carbs, can I...
  3. beckoning

    '88 100hp cavitation? prop spline gear?

    '88 100hp, 4 cyl oil injection. For no apparent reason today, while cruising at 3,500 rpm, the engine raced as if it came out of gear. I checked the prop for damage (cavitation?) and it was clean, even though it is an old prop. Nothing has changed on the boat to cause interference to the...
  4. beckoning

    Great Lakes Special gas tank size

    How many gallons is the below-deck gas tank? About 5 years ago, I put a new floor in my '88 Sea Nymph GLS 19.5. I remember the aluminum gas tank being at least 15 gallons, but could be something in the 20 gallon range. I cannot find specs on that boat. Anyone know the answer?
  5. beckoning

    beep..beep..beep oil level warning

    1988 100hp 4cyl oil injection, 19' Sea Nymph Great Lakes Special. I am posting this on a few FORUMS to see if I can get as much information as possible. For no reason yesterday, warning horn beep...beep...beep from Commander Control box. Not a constant beeping, but regular beep, similar to in...
  6. beckoning

    fuel vent

    '89 Sea Nymph Great Lakes Special (tin) with same vintage 100hp Mercury, and 20 gallon gas tank below the rear middle floor. Problem: Fuel primer bulb will not suck gas most of the time. Details: Until 2 months ago, the bulb filled quickly. Slowly, it was harder and harder to fill. Now...
  7. beckoning

    Oil

    I have 4 questions because the manuals I have don't specify: 1) Correct gear oil for bottom units on my 1988 100hp Merc (less than 1 pint) and 2010 9.9hp Merc (about 1 pint), and 2) Correct oil for 9.9 Merc 4-stroke. It is used 100 hrs/summer in Lake Michigan (45-70 degrees temp) at trolling...
  8. beckoning

    aftermarket rack n pinion

    My steering is progressively getting stiffer and stiffer. My boat came with an aftermarket rack n pinion system. It doesn't seem to have grease fittings or lube points at the wheel, or in the rack/pinion unit behind the wheel, or in the helm end of the steering cable. Only a grease fitting at...
  9. beckoning

    click, click, click

    My Humminbird sonar interferes with my radio...click...click....click. I am certain it is the Humminbird as the clicking stops if I turn off the sonar. They are installed close to one another. Their wires are close for about 6 inches, and that is unavoidable. Will wrapping either the radio...
  10. beckoning

    Mercury 100 throttle cable adjust

    I searched for applicable prior posts and found none. As you can see from the photos, I have a late 1980's (1989?) Mercury 100hp oil injection 4 cylinder. It starts and runs great. At speeds below 2,000 rpm, it runs on 2 cylinders (presumably to save gas?). At speeds above 2,000 rpm, it...
  11. beckoning

    Winterize

    Two more winterizing questions..... First Question: I live in NW Michigan and it gets cold, sometimes for a few weeks. The boat is stored unheated and covered outside or maybe inside. The boat has 2 outboards: 1989 Mercury 100 with oil injection and 2010 Mercury 9.9 4-stroke. I've read...
  12. beckoning

    check charging

    My 1989 100hp inline 4 Mercury may or may not be charging the batteries. How can I tell? I use an external charger to assure the batteries are topped off, but I've recently experienced signs of low battery power. The batteries checked out fine. I would like to do a quick-n-dirty check to see if...
  13. beckoning

    Charging dual batteries

    I have 2 batteries with a Perko switch between them. I can switch to #1 or #2 or ALL. I use #1 (starting battery) for starting, #2 for electronics while trolling and the big motor is off, and switch to ALL when running on large motor in order to charge both batteries from the Mercury's...
  14. beckoning

    VHF marine radio parts

    I have a Uniden Solara radio that needs a microphone gasket. The transmit button is integrated into the gasket. The gasket has cracked causing intermittent transmission, I sealed it with silicone, it worked for a while, then became intermittent again. I need a new gasket. I don't want to buy...
  15. beckoning

    4-blade vs 3-blade

    Help me understand the difference in low speed performance, maneuverability, and torque between 4-blade and 3-blade props. I have a 9.9hp 4-stroke kicker with a 3-blade and am considering switching to a 4-blade for low speed maneuverability and torque. Before spending $$ for a 4-blade, I would...
  16. beckoning

    Prop problem or something else????

    Using my recently purchased nearly new 9.9 4-stroke Mercury kicker that is mounted on the port side, next to my 100hp Mercury, I cannot turn into the wind that is coming from starboard to port when the wind is above 8mph. I troll on Lake Michigan at 2.5mph (which is at about 500-700 rpm), and...
  17. beckoning

    Prop problem or something else????

    Using my recently purchased nearly new 9.9 4-stroke Mercury kicker that is mounted on the port side, next to my 100hp Mercury, I cannot turn into the wind from starboard to port when the wind is above 8mph. I troll on Lake Michigan at 2.5mph (which is at about 500-700 rpm), and the only way I...
  18. beckoning

    preserve mooring cover

    My mooring cover works great and fits well. It has some age. How to preserve it? New custom mooring cover is north of $500. My boat sits in the hoist in northern Michigan all summer. What can I brush or spray onto the fabric to preserve it? The fabric seems to be a cotton-poly mix, not...
  19. beckoning

    2 motors, 1 tank

    I want my 4-stroke kicker to pull gas from the 30 gallon tank for the 4-stroke big motor. What is the simplest plumbing approach to do that? I want to keep life simple.
  20. beckoning

    used VHF marine radio parts

    I asked this in another iBoats Forum, but received no answers. Where can I find used VHF radio parts? My Uniden Solara works great. I just need the blue rubber gasket that seals the clamshell mic and also serves as a trx button. Where oh where are VHF radio parts sold? Uniden was...
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