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    2.5 to 3.0 mercruiser swap.

    the 2.5 is junk and a guy on craigslist has a 3.0 motor.will these motors swap ok.will the 2.5 manifolds fit the 3.0 etc.
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    mercruiser gear oil leaking.

    I have a 1994 crownline bow rider for tubing that has a gen 2 outdrive that is leaking oil in the u joint bellows.i pulled the drive and it pressure test at 15lbs ok. anybody ever seen that before.
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    i think its overspeeding

    I have a 1994 225 aquasport with a Yamaha 250 ox66. when I take off it goes right up to 5200 rpms.as I climb up on plane I pull back on throttle to keep it from going to 5800-5900.rpm. when I am planed off I have about 1/4 throttle that doesn't seem to do much except make noise.should I be...
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    no spark on 3 cylinders 2003 sx250 ox66

    I have lost spark on #2--3--and 6 cylinder Coils ohm out good.all the same. Trigger wires ohm out in spec.all the same. charging 13-14 volts.D 0OES THIS sound like a cdi issue. Just seems odd that its half the ignition. All thoughts appreciared
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    fuel filter

    on my 2003 Yamaha sx250 ox66 fuel injected the paper filter in the plastic jar that feeds the low press. pumps doesn't stay full. sometimes it is below the paper element in the jar.i am have many issues with fuel delivery I think. today it went from running 5200rpm down a river to 1900 rpm...
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    Fuel Pressure Readings 2003 yamaha ox250

    can someone tell me the right specs for fuel pump pressure.i check at the pump and its 50-55llbs. At the test port I get 35 with fuel regulator vacumn hose disconnected. Not really any vacumn there anyway.Hose goes to the intake on opposite side of moter also.
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    2003 yamaha sx250 ox66 misfire

    Having some trouble with my 2003 250 2 stroke today.when its idling after a minute it will cough real hard and STOP the motor.It will restart instantly.then idle for a couple minutes and again it might sputter but usually it just shakes and stalls.almost sounds like a misfire when it does...
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    2004 yamaha 60 four stroke- black smoke.

    I have a pontoon boat for family outings and it started smoking black from the exhaust. it mi8s running real rich at very low speed.after you get it going it clears out and runs ok.i cleaned all 3 carbs and checked diaphrams in the pump.i cant find where it would cause rich fuel at isle and low...
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    hardtop storage

    I am looking for a place to purchase a storage box that could be mounted under my hardtop.tried west marine.no deal
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    sx250turb yamaha

    I have done a compression check on my motor. engine warm and throttle closed have 125lbs.1-5 and 120 #6.is this enough compression for a 2 stroke.?just bought the boat and it only turns around 4800-5000 rpm.after a few minutes it will drop back to 4400.rpm.wide open.pull back throttle a little...
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    Piece fell from above

    I was taking the lower unit down on my 2003 Yamaha 250 ox66 when a piece of a plate fell out.after searching thru parts books it appears that it is the exhaust manifold coming apart..i was planning a trip this weekend.i can get one in time so can I run it without this piece?its about a 2x4...
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    2002 sea doo gtx steering leak

    I have a 2002 sea doo with the steering flaps on the outside of the hull in the back that are taking in water.leak pretty bad but I can see in there to know what is leaking. anybody have any idea what could be going on in there and how hard it is to fix.granddaughter bugging me for a ride.lol thanks
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    Yamalube ring free additive??

    Is there something to this stuff.it is very expensive if so.i am not sure exactly what it does.does anyone use this??
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    Trim tabs running but not moving.

    I HAVE Bennett trim tabs that wont go down. the motor is running with the switch but nothing happens.if I try the up button it sounds as if they r binding.any test I can do.?
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    2003 yamaha 250 fuel injected bogging down.

    I took the boat out to the ocean today for a little fishing trip.i noticed that when its wide open the rpms go to 5200 max.after it runs there for about 20-30 seconds the tach starts dropping down to 4400 and seems to stay.if i pull back on throttle for a minute or 2 it will pull back up to 5100...
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    Lot of slop in steering

    I have a 1995 aquasport with a 2003 Yamaha 250 motor.the steering has 2 hoses going to a ram device on the motor that turns it.the hoses disappear into the transom. how does this system work.there isn't a cable that I can see.plus the wheel turns a lot before the motor starts to turn. veru hard...
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    2003 250 hp no water at all

    I have replaced the water pump housing and impellar on my new to mke motor and it still doesn't pump anything.i tried it in a barrel of water with a drill spinning the shaft and not a drop.i have it full over the intake grate also.i have replaced many mercruisers so I am not a beginner at...
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    1995 yamaha 250hp saltwater-no id number

    I just picked up a 95 aquasport 22ft with a 1995 yamaha 250 saltwater series.. The numbers ar worn off the plate and anything i try to get for it has become next to impossible. Thins is my first outboard motor. Csn anyone offer any thyings to do for preventitive.it says 795 hours on the dash...
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    Islander bottom paint.

    I am taking my boat off the trailer to paint the bottom.i am looking for the best possible product where I have some minor leaks as well.I cant find any loose rivets.it looks in really good condition.i have heard some people using flex-seal-truck bed liner-gluvit-5200.etc. has anybody done this...
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    4 blade prop

    does a 4 blade prop cut down on rpms in the same size as a aluminum.if so is there a rule of thumb on how much??? thank you
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