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    Johnson 150 fuel issues.

    Your fuel pump is obviously not pumping correctly. You motor likely has a vapor separator just above the OMS pump. It' s cover must be airtight, and it's float valve must be working to properly draw fuel from the tank. In addition, you likely have a vapor pump on that motor. It also must...
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    Switched 12v

    The switched +12VDC wire on an outboard is provided by the acc terminal on the ign switch and is usually purple in color. However, it is normally used only for low power items, that need to operate with the engine, like gauges. Normally you would have an accessory switch to run stereos, GPSs...
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    Did my lower unit get damaged?

    Your driveshaft seal appears to be leaking. It happens. Clean up and lube the driveshaft. Now replace the waterpump base, gasket and oring. It will have a new seal installed in it. Make sure you use the correct oring (there are extras in the kit), and that the base is seated completely.
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    1962 Evinrude Starflite IV 75hp no spark HELP!

    You can set the points with a feeler gauge. Not as accurate as using timing marks and light (or ohmmeter), but since you do not have the mark on the back of the distributor pully base, it is better than nothing. Since the points are connected together, a bad setting on one set, affects both...
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    Mercury V6 fuel flow from all carbs

    No response? Do you have a stock fuel pump or some electrical fuel pump on her? Electrical fuel pumps can flood the carbs easily with their higher pressure. If stock pump, it is time to clean the carbs, install new gaskets inlet needles and seats and new floats if you can get 'em. Set the...
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    1986 135-v mercury black max, eliminated oil injection, help

    Good for you. Nothing like following the OEM's recommendations and using a TC-WIII rated oil. Was that Pennzoil "dino" oil or synthetic oil?
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    76 Mercury 850 runs good on muffs but wont accelerat much past idle in water

    Mark, if you tune those carbs for smooth idle like everyone does, or leave them at initial settings, they will be too lean to allow acceleration. it is an idiosyncrasy of the side bowl carbs on Merc motors of that vintage. I really doubt he changed the idle jets and they are too "tight". If...
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    110 Johnson maintenance

    Compression can be measured in a cold engine. The readings need to be within 15% of each other.
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    Alpha 1 Gen 1 shift adjustment

    You could repost this in the MerCruiser forum. Those guys will probably know. I cannot remember the shift linkage well enough to assist you. Post a picture if you can.....
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    110 Johnson maintenance

    Electrical ignition parts are available at many places on the web and likely here at iBoats. Do a search and find the best deal.
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    Alpha 1 Gen 1 shift adjustment

    It sounds like you need to invest in a service manual for your motor and outdrive. They take a fair amount of maintenance.
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    94 Barefoot Sanger engine upgrade

    What is the boats power maximum? What length boat?
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    Sears tachometer

    How many connections on the tach? Older Mercury ones (like ones that originally came with your motor) had 2 connections. One was ground and the other the brown wire sender. You would need to look at the motor's switchbox to make sure the brown wire is connected to it. Newer tachs have 3...
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    76 Mercury 850 runs good on muffs but wont accelerat much past idle in water

    That seafoam trick is unnecessary. If your carbs are clean, and all cylinders are firing it is likely that they are set too lean to allow acceleration. I do not know how seafoam will diagnose or fix your problem. Put the boat in the water, with fresh 50::1 fuel in the tank. Start and warm...
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    88’ Mercury Blackmax 135 HP

    Try ebay. Those covers were probably common. I have on on my '93 135V6.
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    88’ Mercury Blackmax 135 HP

    So you do not have that plastic cover over the flywheel with the window on the side? A salvage yard comes to mind. They are avail new, for some reason, for $100 or so. I would also try ebay.
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    Tower of power polished cowl wrap.

    I always liked the 1977 Merc 1500 decals. Nice shades of blue and a bit of red trim.
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    How do I adjust the fuel/air blend ???

    A lot of your assumptions are wrong. Most modern outboards have idle mixture adjustment and fixed high speed jets. Johnnyrudes from the 50s and early 60s were the last to have adjustable high speed jets, Some newer motors do not have any carb adjustments for mixture. Adjusting the trolley...
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    1997 Evinrude SPL90 2 Stroke V4 dripping oil/gas down front of shaft from case

    You need to see where the fuel comes from. Likely the carbs. A lot of those vintage motors have plastic carb bowls that warp and leak. However, it is perfectly normal to rebuild the carbs, even with good bowls, periodically as the floats and inlet needles can leak, causing what you are seeing.
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    Engine Identification?

    Is it rusted solid? Agreed, it should be free.
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