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    Replacing Alpha Gen 2 upper and lower housings

    My upper and lower housings are starting to see major corrosion. The gearset and bearings are in excellent shape, so I'm going to switch all internals over into new housings. If all original bearings and gears will be reused, will I need to measure and reshim? Thanks.
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    Bunk Bolts

    Seem some at 5/16, most have been 3/8
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    Tin Rig Tow Vehicle

    Any v6 and a lot of 4 cyls will get it done if towing locally.
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    Car Tires ok?

    In my experience, 25 years ranging from 3500-7000 lbs axles, I've found car tires have been more reliable and have lasted way longer than trailer tires. As long as the tire meets loading requirements, I don't think it matters. In my opinion, there's a lot of hyperbole out there in order to...
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    1979 85HP V4 with low compression (80psi) in all cylinders

    Running well with 80 psi on those motors is not unheard of. Probably better for the motor's longevity imho to run on lower compression. Especially with fuel not being of the same quality as it was in 1979.
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    Optimax 150 - Verrrry rough idle

    Normal when the center valve core is depressed. Not normal if it is constantly leaking out of the valve.
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    Sea Ray tow

    Towed 10k from Atlanta to Charlotte with a 2011 expedition, smaller gear ratio. Easy peazy. Wouldn't go higher than that, but did it flawlessly.
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    Do you know what this is? See pic.

    Thanks Scott. Wonder why they added another lift ring on the head as there are 2 on the intake manifold and one on the thermostat housing.
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    Do you know what this is? See pic.

    Yes. Looks like it is one half of the part.
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    Do you know what this is? See pic.

    Too big to be a dist hold down
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    Do you know what this is? See pic.

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    Do you know what this is? See pic.

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    Do you know what this is? See pic.

    It's 3-4 inches wide at one end.
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    Do you know what this is? See pic.

    Sitting in bilge after removing a 1991 4.3. Looks like only half of the entire part.
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    My twin Optimax 150's sunk!!!

    Writing this as a reference for others, who, god forbid, find themselves in the same situation. Results will vary of course, but I got pretty lucky in this case. Twin 2001 optimax 150's, sunk 3 to 4 feet in brackish water for 36 hours. Once recovered, immediately removed spark plugs and turned...
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    2001 225 Yamaha ox66 oil overflow problem

    Tearing my hair out with this one. Oil is draining out of the overflow tube into the intake manifold. This seems to happen with the key off and no +12 volts to the remote tank pump. Has anyone experienced any sort of siphoning issues with the engine mounted tank?
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    Measuring gear backlash on 01 225 using indicator tool, which mark?

    I read that the same backlash indicator tool used for mercury could be used for Yamahas. If so, which mark should be used? The tool has three different marks. Thanks.
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    01 Yamaha 225 Prop Shaft Won't Slide Out - Carrier Removed

    Hi all. Need some help. I have the bearing carrier and shift shaft removed from the lower unit, however the prop shaft won't slide out. It will slide back about an inch, and then stop with the clutch. It acts like the shifting mechanism on the other side of the reverse gear is hanging up on...
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    Different Carburetors on Twin Evinrude 150 or 175's - Mid 1980's

    I have twin motors - 150 or 175's (flat back exhaust) - early to mid 1980's. Not exaclty sure. One motor has 1 3/8" carbs, the other has 1 5/16" carbs. Is this right? They both seem to run well. Which size is right for these engines? Also, do you jet for the motor or the size of the carb...
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    1985 75 HP knocking at idle when cowling / covers on, no knocking when cowling is off

    I have confusing situation. The motor runs fine at all speeds. If I have the cowling on, I can hear a minor slap at low speeds. I can't hear it with the cowling off of the motor. I can't find anything interfering with the cowling. All brackets are fastened down tightly. Can an internal...
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