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    Starting Issues - 9.9 HP Mercury OB

    I have a 9.9 HP Mercury OB motor that I am having some fuel issues with. First of all, it is a tricky engine to start. It appears to be very easy to flood, and once flooded, it simply will not start. To start the engine, I use the squeeze bulb on the fuel line to pressurize it, open the tank...
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    Third party parts for Mercury 9.9 HP motor

    I am looking for third party parts for my 2006 9.9 HP Mercury OB motor. I am looking for a fuel pump (or a diaphragm kit ) and fuel filter. The OEM prices are quite high for these parts so I am looking for alternatives. Can anyone recommend a third party parts supplier for these parts...
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    Stalling Motor at higher Revs

    I have a 9.9 hp 2006 Mercury OB motor. When I am running the motor at higher revs, it will "stutter" or simply completely stop. No problem restarting it, but am wondering what would cause it to suddenly stop like that. Any ideas or things to check? My fuel tank is equipped with a fuel hose...
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    Engine Starting Issues - 9.9 Mercury 4 STroke

    I have a mercury 9.9 HP outboard motor (2006 vintage )and I have a lot of onging issues trying to get it started this year. Took me almost 4 hours to get it going. Ran it for about 20 minutes at idle and then started it every second day thereafter for about two weeks. Started within 2 pulls...
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    Mercury 9.9 HP Fuel Pump

    Pulled out my Merc 9.9 HP ob motor to start it in prep for a trip next week. I could initially get the motor to run, but only with the choke on and for very short periods of time. The engine would die afterwards. For the longest time I could not get it started. Pulled the plugs and could...
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    Clutch replacement - 9.9 HP Mecury Outboard

    I am in the process of replacing the clutch on my 9.9 HP Mercury Outboard (SN OR126144). The motor will not shift into reverse, but works fine when shifting from forward to neutral and back to forward. The reverse clutch dogs are rounded off, so engagement is very difficult. See the first...
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    Transom savers

    I have a small 9.9 HP motor on a 14' aluminum boat. When trailering the boat, I travel with the motor down, in fwd, gear so the motor will swing up if I hit anything lying on the road. Unfortunately, on rough roads, the motor can bounce a bit and I am afraid it will take a toll on the transom. I...
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    Transom savers

    I have a small 9.9 HP motor on a 14' aluminum boat. When trailering the boat, I travel with the motor down, in fwd, gear so the motor will swing up if I hit anything lying on the road. Unfortunately, on rough roads, the motor can bounce a bit and I am afraid it will take a toll on the transom...
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    Clutch will not engage in reverse

    I have a 9.9 HP mercury outboard that will not engage in reverse. I can hear the clutch running against the reverse gear wheel but it will not engage. Even after that, I cannot shift into neutral - I have to turn the motor off and rotate the prop shaft to get it to go into neutral and then...
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    Shifting in Reverse Problems

    I have a 9.9 HP o/b mercury that I am having difficulty shifting. It is a tiller shift. Going forward from neutral and back to neutral - no problem. There are times it is very difficult to get into reverse, and once there, sometimes impossible to get back into neutral. Once this happens, the...
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    9.9 HP mercury O/B Starter cable

    When I try to start my motor with the pull cable, occasionally it doesn't appear to catch the flywheel/crankshaft and i am "pulling air" (about 1 in every 3-4 pulls I will get no engagement). About 6-9 inches of cable comes out and then it catches. Was told it was probably the recoil spring...
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    Fuel System O rings

    I have a Merc 9.9 o/b 4 stroke engine. The carb on this particular motor has a priming bulb and hose that attaches to the bottom of the carb. If you remove the cover where the hose attaches there are two small o-rings inside. Does anyone know the size or part number for these o-rings? They...
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    Winter Storage - Grease on cables

    What is the best lubricant/grease to put on the throttle cables and throttle cable assembly within the engine housing on a 9.9 HP mercury O/B motor for winter storage outside? I am in Ottawa, Canada, so the winters can get pretty cold and damp. Thanks. Doug
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    "Wash" Port on 9.9 Mercury O/B Motoer

    On my 9.9 HP Mercury O/B motor, there is a port on the lower gear housing beside the gear oil vent port that I think says "WASH". What is this port for? Thanks, Doug
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    Winter storage outside

    I intend to simply put a tire cover on my motor (9.9 HP f4 stroke and store it outside over the winter (Ottawa Canada). The motor will be mounted on an engine stand, so it will be standing upright. I will change the lower end oil and engine oil before storage, but am a bit uncertain about how...
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    2006 Mercury 9.9 HP outboard - 4 stroke

    I bought a used 2006 Mecury 9.9 HP 4 stroke outboard motor. Am new to outboard motors, but I am having some issues with this motor. When I prime the motor (either with the priming bulb on the fuel line from the tank or the priming bulb on the motor), gas will eventually leak out of the carb...
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    Mecrcury 9.9 HP shifting issues

    I am new to this forum and new to boating as well. I have picked up a second hand Mercury 9.9 HP outboard motor. Took it for it's first drive today and had some issues with it. Once started, it tends to rev high, and when shifting into forward, it slams into gear. Once in forward, it is...
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