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    Mariner 1996 Outboard 150 [L] bogs down at 2k rpm

    Running the motor with less oil will make it run real well for a very short time. After that it will have less than the required number of moving parts. Stick to 50::1 mix. It should run just fine on premix that has been sitting. I suspect your carbs are not clean or adjusted correctly.
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    1980s mercury 115 tower of power issues!

    A serial no. beginning with A9 makes the motor an 1986, according to Maxrules.
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    90HP 2 Stroke Exhaust Port scaling

    You need to determine and mitigate the cause of the piston scoring. It could be overheating or lean mixture, so clean the carbs and replace the impeller and thermostat. I presume Lucas is TCW-III rated? Do you premix the fuel?
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    1980s mercury 115 tower of power issues!

    I do not think your mechanic is well versed on inline 6 engines. Not all his fault as those motors are usually older than the mechanic. Il6 motors do not have slip rings. They have labyrinth seals, which seal the crankcases individually, as required by a 2 cycle engine. These fail, but do so...
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    Slow mode vro

    SLOW mode is triggered by overheat sensor. The overheat sensor grounds a wire that runs to the powerpack and the alarm buzzer. If the buzzer is bad, the motor will still go into SLOW, but the alarm may not sound. 8 years is a long time for an impeller to pump. Was it changed? If not it is...
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    J150EXECD Looks like I need a new float?

    Even the picture of the new ones shows cracks, however, it is hard to be sure if the cracks are the same. I would expect them to be avail aftermarket. OEM ones are $26 ea.
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    Negative spray on anti-vent plate -

    agreed. Spray happens with speedo pitot's, transducers etc.
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    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    There was an electric ski boat some years ago. It was conventional battery powered. You had about an hour of skiing and 12 hours to charge up.
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    Transom Repair 1984 Bomber Scout

    You can rebuild that transom from the outside, without removing the cap. You would cut the transom out, line the deck, sides and under the splashwell with 2x2 P/T lumber to screw the new transom to. Glass the 2x2s to the top sides and deck, and follow the deck 2x2 with SS screws Now cut 2...
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    1993 Johnson 150 Ocean Runner broken steering arm

    If you need to replace it, it is a pretty big job as you need to remove powerhead, gearcase and motor mounts. Used swivel shafts are available.
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    Throttle control box

    A lot of those shifters have the ability to operate as throttle only. There is a way to disconnect the shift cable. Two ways are a "throttle only" button, or pulling out on the throttle handle. Sometimes they stick that way, and you have no shifting. You might see if the throttle only button...
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    1993 Johnson 150 Ocean Runner broken steering arm

    If I understand the term Steering Arm, it is one piece including the swivel shaft and upper motor mounts. I am not sure how you could use the motor without it, as I cannot think of a way to repair it.
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    Does my outboard have a thermostat.

    Looks to be a 1991. One would expect it to have a thermostat, however, I could not find one in the parts diagram.
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    Throttle control box

    Gee, any remote control for MerCruiser Alpha I. A lot of those are side mount. They can be replaced with another side mount. They come in universal and MerCruiser alpha only styles. Unless you really hate your current control, replace with same kind to reduce cutting and drilling. What is...
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    wiring help please

    The black box could be an overheat buzzer. It is near a grating. Is that for the horn?
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    wiring help please

    US Marine should have instruction on their web site, I would presume. Does maxrules have any wiring diagrams for the Force Motor? They will have one for the Merc. OK, you can narrow it down. Tach will not go to the ign switch, but ign power will. The ign switch will also have starter...
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    Bilge pump float sticking.

    Grub, it takes a real long time (months) for the water sensing bilge pumps to affect the battery, if there is no water to pump. If you run the boat once a week, and your charging system and batteries are good, you will not have any issue.
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    Fuel issue please help !!

    The idle circuit is in the throttle bodies. There are usually side plates that cover the idle needle. You can remove them and spray the passages, and install a new gasket and plate. Make sure the spaghetti seals between throttle body and intake manifold, and carb and throttle bodies are...
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    Bilge pump float sticking.

    There are bilge pumps with built in float switches. There are also bilge pumps that use electronic timers to check for water and then pump it out. Why not leave the existing pump and use it manually and install a new automatic one.
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    How big can I go??

    NADA tables may tell you. Mirrocraft has a web site. Perhaps you can match it up to a current or older model. 16 foot aluminum rowboats used to be rated to 25HP.
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