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    Oil coming out of carburetor

    Check your oil level. It is likely overfilled or the PCV system is having issues.
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    Bone headed move - put the plug in with 3M 4200

    Hand tight may loosen, and that would be bad. Put some anti-seize on it and moderately tighten with a small wrench.
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    Tower of Power 1150 - unknown year - side bowl carbs float-needle valve issue?

    I remember that the carbs are a tight fit. I usually took them off as a unit, leaving them connected by the black plastic "straw" that operates the throttle plate. BTW- those straws are fragile and are not widely available. Crowleymarine says then can get 'em. The top carb is unique because...
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    Tower of Power 1150 - unknown year - side bowl carbs float-needle valve issue?

    No rejetting necessary. Actually, I had that exact motor and never had any issue with the backdrag feature. Just to be clear, the backdrag function routes carb vacuum into float bowl, pulling in outside air. The backdrag jet is a restriction for air entering the bowl, thus creating a small...
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    Tower of Power 1150 - unknown year - side bowl carbs float-needle valve issue?

    The cowling is from 1977. Not the first year for PTT. Serial number should be between transom clamp screws. Rebuild the top carb with new float inlet needle and seat and gaskets. If you see any dirt, get it out and rebuild the other two carbs, as well. If serial number is not on transom...
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    Suggestions on how to fill my onboard gas tank?

    Jimmbo, You might want to correct your post to say that even idle requires some small amount of oil mixed into the gas for carb 2 cycle motors. If you have evidence of 2 cycle motors with carbs running on straight gasoline, I would like to see it. Modern engines need 50::1 or maybe a bit...
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    How to run PTT wiring thru 1998 OMC control handle.

    The red locking lever on my 1998 OMC concealed mount control handle fell apart after all these years of sun exposure. I purchased a new one, but am having trouble finding the correct path to route the PTT wiring from the thumbswitch in the handle past the locking lever to the handle base...
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    1989 Mercury 200 Black Max Maintenance

    You can use any TCW-III 2 cycle oil. Some have found that Seafoam mixed into the fuel helps clean up the carbs a bit. I would not expect miracles. Make sure the overheat alarm works. Rebuild the waterpump with a new impeller, wearplate and 2 gaskets. If the pump cover SS liner is...
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    Power trim Wire, 2 or 3?

    Gee, the PTT trim unit has 6 heavy stainless bolts holding it to the transom bracket. I do not think it needs a ground wire. A lot of Mercs did not have trim senders, but if you have one, you should see the body of it inside the transom bracket, and it will move with the trim of the motor...
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    Suggestions on how to fill my onboard gas tank?

    Gee, I cannot read all the posts. Likely some have been duplicated. It is real simple. Mix the fuel every 6 or 12 gallons. So get some pint or quart containers. Dump in a pint of oil, fill with 6 gal of gasoline, repeat with gasoline, and oil. when you think you are close to full, do 8 oz...
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    Year and ignition

    The Maxrules site lists it as a 1976. If you take off the wrap cowl and see a distributor it is a few years older. A 1976 850 would have 4 ign coils. I disagree that it is heavy for 85 HP. It will push your boat nicely. Two strong people can lift that motor onto the transom. Balance the...
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    2022 lower unit compatibility chart

    See what the SEI site (sterndrive engineering) says. They sell new gearcases for most popular outboards and sterndrives.
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    Boat cover waterproofing

    Ideally you want some UV protection as well as waterproofing. I am not sure the 303 gives that. If not, I would use some generic scotchguard product, as the price is much lower.
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    Troublesome motor??

    I did not think Johnson made 4 cycle OBs in that year. They did make very good 2 cycle motors with good oil injection and multiple carbs.
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    Engine Won't Run When Warm

    My 1998 Johnny 150HPV6 (6 carbs) does that whenever you run it for a while and turn it off. It idles rough for a few minutes but will idle. I usually let it run for a few minutes at high idle and then she will clear out and run fine. I think it is a slight overheat issue. You might...
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    Repainting 1995 Crestliner Phantom But Leaving Bottom Bare

    You plan to trailer it, right?
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    Shifting problem

    MerCruisers usually have an upper and lower shift cable. The lower shift cable is a bit tricky to install as it needs to be threaded thru the shift cable bellows and the bitter end installed. A service manual is a good idea. The upper shift cable and throttle cables are more straight...
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    Lower unit compatibility

    https://www.sterndrive.cc/Mercury-Mariner-Force-Outboard-Lower-Unit.html
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    Lower unit compatibility

    It is probably best to retain your gear ratio and gearcase size. Merc driveshaft length are usually not adjustable. So you need to order the correct driveshaft length and ratio plus the size of the gearcase. On an unusual event, I had swapped a 1993 Merc V6 25" 5" extension for a 20"...
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    Lower unit compatibility

    Why not go on the SEI website and see what gearcase models fit your motor, as well as other models? It is likely that V6 gearcases from the late 70's to the early 2000s will fit, but you need to check. You will want to know your gear ratio. 2::1 is most common, but there are others as well...
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