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    Newbie question on carburetor bowl and drain screw

    I have a 74 Mercury 650 (65 HP) motor and I would like to drain/clean the bowls. Where exactly are the bowls located and where would the drain screw be located? Thanks in advance.
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    Correct oil/gas mixture for a 73 Mercury 650?

    I believe it is 50:1. HOw does that break down on a 6 gallon gas tank? 5 Gallon? Thanks!
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    Help for 73 Mercury 650

    Ok, here is my problem, can anyone help. I am really getting overwhelmed at this point and can't afford to lose anymore hair. We purchased and old tri-hull last year with a 1973 Mercury 650 (65 hp) motor. We fished it many times after purchase with little problem. Then one day after my buddy...
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    1973 Mercury Throttle/Shift cable question

    I have been working on my engine and I think i have it close, I just need some help on the throttle and shifter cable adjustment. The engine is a Merecury, 1973, 650, 65 hp outboard. Can anyone tell me which cable is the shifter and which is the throttle? The cables sit on top of each other...
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    1974 650 Mercury 65 Hp No Power

    I took the plugs out, look to be in good shape. Nothing out of the ordinary. Took off the distributor cap and noticed that the points were corroded and the rotor was also a little corroded with a little bit of dust in the bottom of the cap. So I took my handy little dremel and polished them...
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    Water pump troubleshooting

    Would a faulty pump cause the engine casing to become hot to the touch and keep the engine from running at it's normal power/rpm's? No signs of problems like smoke or funny sounds, just complete lack of power.
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    Fuel system question......

    Would something like a clogged filter or bad pump etc...cause an outboard engine that has been running fine, all of a sudden to just run but run poorly (no spitting or sputtering) just complete lack of rpm's?
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    65hp Mercury outboard not running right, help

    I believe the engine is a 1975 650 or 65 hp Mercury outboard. Engine has ran fine for several outings. Then one day the engine decides it just doesn't want to "get up". We stopped for a bit and then it ran fine again. Figured it must just be some water in it from the bad rain we had the...
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