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    '94 Yamaha 130TXRS. Trims up only when stopped/slow.

    Recently topped off trim fluid when trimming was sluggish. That solved the problem. Now though, the motor trims up only when going very slow or stopped. As soon as we get moving a little, both before and after getting on plane the motor only trims up mayby 25%. It will not go higher. As soon as...
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    Stripped Threads on trim Cylinder....

    While bleeding the trim cylinder lines I discovered that one port was so far gone (corroded) that I could not get the line re-attached and ended up stripping the threads. It's aluminum and I think I'm basically screwed (pun intended) and need to replace the cylinder. But.... is there any...
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    Overheating at WOT. Not the usual solution....

    I have a 1982 Mercruiser 470. Since I got it a couple of years ago it has been overheating at high revs. (over 200 degrees F.). I know this engine has a history of problems, but this one has had most of them fixed already- new alternator, new 4" heat exchanger, etc. I replaced the cam seals 2...
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    SAE 40, or 20w-40 motor oil...Hard to find

    1982 Mercruiser 470 engine. My manual says use "SAE 40" oil, a straight-weight since I'm in a warm climate (over 50F temp. SW Fla). Also says optional 20w40 or 20w50 is possible but not preferable (Aslo hard to find). Strraight SAE 40 is not turning out to be very common, even at stores like...
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    Replacing the Water Pump Cam Seals on 1982 Mercruiser 470 -Day Two

    (I discontinued this thread and continued with the "Replacing the Water Pump Cam Seals on 1982 Mercruiser 470 -Day One" thread. Sorry for the confusion).
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    Replacing the Water Pump Cam Seals on 1982 Mercruiser 470 -Day One

    Ok. Here?s the start. A 1982 Mercruiser 470. I just bought this as is. Don?t know much history other than it overheats at high rpms. I cleaned out the manifold, elbow, replaced the thermostat and the exhaust shutters. Before the test drive I found a coolant leak out the water pump weep hole. So...
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    Replacing the Water Pump Cam Seals on 1982 Mercruiser 470

    I am going to replace my cam seals on my 1982 Mercruiser 470. I am ordering the parts tomorrow and will probably start disassembly this weekend, and re-assembly next week, after the parts arrive. But I have a couple of questions first. I have had water only in the engine now for a...
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    How much time w/ coolant leak problem?

    I have a 1982 Mercruiser 470 #6180420. It seems I have coolant leaking from the front of the motor. Looks like I need to do a repair on the seals and camshaft. Got that. Question is: is it still safe to operate for a little while? I don't think it's been leaking long, but I need to do some trial...
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    1978 18' Sylvan Deck Boat Remote Control Throttle operation....

    I just bought this yesterday. It has a 1978 150 HP Johnson outboard on the back. I am trying to figure out what the black knob on top of the remote control housing does. I assume the small lever below the main throttle handle is to control the the idle when starting (pull it up towards me to...
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