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    Engine Will Not Turn Over

    Bad power cables feeding both the starter solenoid and the ign switch. If you can jumper just the positive to the starter and she cranks, the ground is likely fine. Check the entire battery cable length with fingers looking for corrosion under the insulation.
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    Fuel Tank Sensor

    Hopefuly your boat has a hatch over the fuel gauge. If so, pop it off, and remove the 5 self taping screws, holding the sender in place. SeaSwirl boats often had a plastic tank, with screw threads moulded in. Be careful not to strip those. Some of those plastic tanks had galvanized...
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    2011 4.3 Alpha MerCruiser winterizing question

    I like to use the antifreeze to push the residual water out of her block. As a test, after the block has drained and been blown out with air, dump some antifreeze into it and see if any more water comes out.
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    Controller box

    They will interchange, as long as you get a control that is compatible with Mercury outboards. The cold start lever works as well as the throttle only button.
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    2011 4.3 Alpha MerCruiser winterizing question

    Gee, everyone focused on draining the block. Good stuff, but not complete. Your shop does a lot more stuff, or it should. Run motor on flusher. After warm, fog engine with Fogging Oil, and stop flushing. Pull all drain plugs to drain engine of water. Pull upper and lower drain plugs on...
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    4.5 mercury 2 stroke

    Smooth move. 10 Hp is a better choice. Also, consider a larger engine. The cost of a 15HP motor over a 10HP is small. However, I think the most important thing is that they use the same fuel. Otherwise, you always have the aux fuel tank kicking around. And how much fuel do you take for...
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    Bad Transom?

    Gee, does anyone have a judgement as to whether the transom was weakened. I have only exp. with f/g boats, but that dent/crease looks like an issue.
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    Motor swap, back and forth.

    Different year Mercs use different electrical controls. The control cables usually work for all Mercs.
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    Mercury 650 70’s outboard

    You can replace the poppit and see if that fixes it. Be real careful removing the screws that hold the exhaust cover. They can break. A freshwater motor gives you a chance to pull the bolts with little breakage, but try to loosen them with a hand impact driver. If it were me, I would run...
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    2000 70hp Evinrude 4 stroke. Thoughts

    Run it on a flusher or in a barrel and see what makes noise. Noises are usually real bad. Maybe the noise is in the gearcase? That would be cheaper to fix than the powerhead.
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    Mercury 650 70’s outboard

    Not sure exactly what part is leaking. Likely the exhaust cover. They pit on the inside until one of the pits leaks. If so, it may leak in other places eventually. However, at this time, the motor only has one leak and it is a million years old. Let her dry and put a dab of silicone on it...
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    2000 70hp Evinrude 4 stroke. Thoughts

    OK, so you had the motor trimmed to the max. Generally, you can run with the engine trimmed to the max, and if the prop doesn't blow out, it is fine. Unless the motor is mounted too high on the transom, she should cool fine, even at max trim. It makes sense to check the motor for overheat...
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    4.5 mercury 2 stroke

    You would also need a slow or better yet, no current. I have seen sailboats under power fail to get into a creek, when the tide was going out. The current overpowered the kicker.
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    Interlux Brightside

    Interesting question. Brightside is pretty good and hard w/o a specific hardener.
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    Mercury Tilt and Trim units

    You would need to find a flush bushing that fits the release valve. Then you would drill and tap for the OD of the flush bushing. I have no idea if you have the material to drill and the space to install the flush bushing.
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    Motor swap, back and forth.

    Steering swaps pretty easily between motor makes. The electricals and control cables do not. For those the same brand motor is good.
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    Merc 3.0 Overheating

    Compression can leak into the cooling passages, causing overheat. You can run it and check for pressure in cooling system. Not sure offhand how to do that, though.
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    Mercury Tilt and Trim units

    Can you drill the manual release hole oversize and tap for a flush bushing?
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    Merc 3.0 Overheating

    Check your compression. A leaking head gasket can also cause overheat. Was the boat always used in freshwater? Exhast manifolds in salt water only last 10 years at most.
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    Garboard drain assembly

    A lot of garboard drains do not have tubes. Seal the transom wood with epoxy or polyester resin. Seal the garboard fitting with silicone.
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