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    Yamaha Ring Free additive

    My mechanic suggested I 'shock treat' with this additive, and then stay on a regular dosage of it hereafter. If there is a lot of gunk in the fuel tank, can this stuff cause the gunk to dissolve and then deposit downstream, say, in the carburetor? Something like this happened in one of my cars...
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    Idle speed setting

    Does anyone know the proper idle speed for a 1994 Yamaha 90? Should this speed be set while the engine is in the tank or at the dock, or can it be set with the earmuffs on--or is there any difference?
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    Two Spark Plug Questions

    1) I went to my local auto parts dealer for 3 NGK B8HS-10 plugs for my Yam 90. They only had B8HS, but told me it is the same plug. Is this ok to use?<br />2) The same guy says to put a popular anti-sieze compound on the threads. An OB mexchanic once told me this stuff has copper particles in...
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    Towing with a bumper

    I posted earlier about whether or not a front wheel drive would make a good tow vehicle, and lots of responses came in--pro and con. We ended up getting an '02 Blazer 2WD with a 5300 Lb. tow Cap.. Now my question is this: The bumper has stamped on it "3500 Lb. tow Cap. and 350 Lb. tongue...
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    zinc anode connection cable

    The rectangular anode below my Yamaha 90's transom mount had to be replaced. When I took off the attachment bolts, I noticed the remains of a ring terminal connector. Then I started looking at other Yamahas and found that they all have a cable (Stranded Wire) connecting this anode to the...
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    '96 Yamaha 90hp tilt/trim question

    We go to the fishing hole, tilt up engine and fish. Then we go to leave and the tilt motor wont run. The emergency screw for relieving pressure to the hydraulic system happens to be below the water line. My gut feeling is that opening this screw under water is a bad idea, After tapping on...
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    Yamaha tilt/trim

    My tilt/trim worked fine, but then suddenly it would not work at all--just a click from the relay when trying to raise orlower the engine. I tapped on the motor with the switch engaged, and it started to work again. I'm guessing that the brushes in the motor are starting to go. Is this an easy...
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    '96 Yamaha Troubleshooting Question

    This engine runs fine at idle speed and up to 1700 RPM. From 1700 to about 2200, it runs very rough; and then above 2200, it smooths out again. Has anyone had a similar problem, and where should I look for the solution?
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    '96 Yamaha 90HP Question

    On the bow side of my lower unit is a piece of plastic tubing which comes out from below and heads up toward the powerhead. It is broken at about the water line. The engine runs fine, but can anyone tell me what the function of this tube is or where it goes to so that I can fix it?
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    Bedding Deck Hardware

    I bought a used CC skiff and have discovered some areas of softness on the fiberglass-over-plywood floor. My friend tells me its probably due to failure to properly bed the console, seat, and deck plate screws with a bedding compound. My questions are 1)what is a good compound to use, and...
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    '96 Yamaha 90 Trim Indicator Troubleshooting

    I want to find out why the trim indicator on my digital tach stays at the medium position. First, I'd like to see if the sender unit is any good. There are three wires leaving the sender: Black, orange, and pink. What type of device is this, a variable resistor for instance? I can unplug the...
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    Diagnosing a Fuel Level Sender or Gage

    My used boat has a 25 Gal. built in fuel tank. The gage comes alive when the ignition key is turned on and rests at just slightly above half-tank when the tank is full to the neck. After I run out about 8 Gal., the gage reads just below half tank. In short, it's not doing me much good as an...
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    "WASH " screw on '96 Yamaha 90

    Does anyone know what this is for--and how to use it if it is what it sounds like it is?
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    Front Wheel Drive Tow Vehicle

    I have a 17' center console with a 90hp Yamaha on a single axle trailer. I am looking at buying a Saturn Vue with a 6Cyl. and 2500Lb. tow capacity. At this time, I do not actually know the weight of the rig fully loaded(but my guess is about 2000Lb.). If I find out the weight is 2K Lb. or...
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    Selecting Propper Propeller

    I bought a used 17' deep vee skiff with a '96 90hp Yamaha and a 13x19 SS prop. The seller told me he runs it up to 4200 rpm to plane and then backs down to 3900 to stay on plane and conserve fuel. The boat seems to work just fine this way for me, but I understand that to not operate the engine...
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    boat wiring questions

    I bought a used boat. The wiring is a mess. In the stern, the battery box has lots of ground wires twisted together and electrical-taped, along with several grounds stacked onto the battery's negative terminal. On the console is a fairly ok fuse/switch panel handling the positive<br />side...
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    boat wiring questions

    I bought a used boat. The wiring is a mess. In the stern, the battery box has lots of ground wires twisted together and electrical-taped, along with several grounds stacked onto the battery's negative terminal. On the console is a fairly ok fuse/switch panel handling the positive<br />side...
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    Composite Propellers

    I would like to get a spare prop. Composite props are inexpensive. Are they ok to use?
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    Jumpstarting Microchip-equipped engines

    I'm told that it's not so much jumpstarting that damages the electronics, but rather current surge and loose Batt. connection(s). That makes sense. If the connections are clean and tight, is the danger then eliminated? After all, cars all have microchips nowadays. [I bought one of these jump...
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    Danger to Microprocessor/Microchip(s) when jumpstarting

    I read in "The 12 Volt Bible for Boats" that jump starting some modern outboards equipped with microchip technology can damage the electronics. Is this true with Yamahas, 90hp and up?
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