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    2000 OX66 V250 oil injection question ( Engine oil tank Float) ???

    Hey guys, 2000 OX66 V250TXRY I am in the process of reconnecting the oil injection system on the motor. The previous owner had purchased it already disconnected as well. needless to say i have no idea as to why, when, or if there was a good reason. The motor came with the main (on engine)...
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    2000 OX66 wire harness help??

    I just purchased a boat with a 2000 OX66 engine. I am new to the yamaha world, owned plenty of OMCs and Mercs, hoping i made a good move. The guy that had the engine before me however has FUBARed the wire harness beyond belief. He has also done away with the remote oil tank for some reason and...
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    HELP! Fuel Problem ( I Think)

    1998 60 Degree Johnson 90Hp Loop charged V4 - J90SLECM Hello all. I just bought this engine used, since then i have done a total rebuild for various reasons, Low compression, motor sat for a year or more, etc. I had all 4 cylinders bored out .020 over, replaced pistons w/ OMC .020. New...
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    90HP 60 degree Piston size question

    1998 60 Deg 90HP Loop Charge J90SLECM Hello all, Quick question regarding replacement piston brand and size. I am rebuilding my motor due to low compression on 2 out of 4 cyl. I know what caused the compression problems and have fixed it, (previous owner sank it). I have stripped the block and...
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    Mercury control box throttle lever adjustment

    hello guys, I have a 2008 merc 90hp 3cyl 2 stroke mounted on a 17 Hells Bay flats boat. The throttle lever is very loose. You CANNOT remove your hand from the lever while running at any speed, (its dangerous). I have removed the chrome plastic cover from the mercury control box, (not quicksilver...
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    1998' 90 HP 60 Degree Johnson Idle problem

    Hello everyone, * Recently I had some issues with my engine, Fuel problems to be exact, ethanol, water, on and on. Listed below is the problems I corrected, and may have caused. * engine info, 1998 Johnson 90HP 60 degree optical ignition, close to 6000 hours. Well maintained... * Replaced all...
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    2005 225 hp Optimax Lower unit problem. Warranty??

    2005 225hp Mercury Optimax approx 800 hours.. Ok , I am going to attempt to make a long story short: A friend of mine has this motor on his 23 Dusky CC. About 3 months ago he took it to what was then a Mercury dealer in our area for a 100 hour service. Somehow when they were changing the water...
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    Trouble with stator, what stats do I trust? 1998 90hp

    I just replaced the powerpack on my 98 90Hp 60 Degree Johnson. My initial testing pointed to it anyways. I also replaced the optical sensor, Champion QL78yc plugs and wires. * I found a corroded/ broken wire going to the stator from pwrpack. It was one of the brown wires that look like it tied...
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    Testing a stator? Need to build a DVA...help 1998 90hp

    98' 90 HP Johnson 60 Degree. * I had no spark at all so i replaced the optical eye sensor and the power pack. I tested the stator before changing both componets per the the manual, except I do not have a multimeter that reads the peak output voltage, or a DVA. The resistance of the stator per...
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    no spark all the sudden. HELP!!!

    After fixing most of my fuel problems I ran my engine in the driveway for about 10 min. It ran great until all the sudden it just stopped. Almost like I had turned the key off. I checked for spark and all the sudden I had none on any cylinder. I disconnected the ground from the keyswitch as...
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    No fuel getting to top 2 Carbs...help 1998 90hp

    1998 90hp Johnson 60 Degree- J90SLECM After water/ethanol and rotten hose problems i have replaced the following. - All hoses and clamps including anti siphon valve at tank - Primer bulb - Racor filter and cone shaped screen filter behind airbox. - Rebuilt all carbs, new kits, cleaned.. -...
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    1998 60hp No spark- well sometimes maybe

    1998 90hp Johnson OIS 60 degreee ( J90SLECM) Just rebuilt carbs, took apart and cleaned VRO pump, replaced entire fuel system--- ( hoses, primer bulb, check valve, racor filer, filter on fuel manifold, cleaned EVERYTHING!!) The problem started when the motor started running like CRAP...
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    J/E Ignition switch wiring???

    I just bought a new keyswitch. Presently the boat is basically "hotwired" i had installed a pushbutton start and a toggle for ignition. I need a drawing of the back of the new keyswitch since it was not supplied. It is the "new" style one with the 6 pole push on type connectors. thanks
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    1998' 90hp 60 degree, running VERY BAD.. HELP!!!

    1998 90 HP 60 degree (model # J90SLECM) I just rebuilt the entire motor 100 hours ago. My motor has been running a bit bad lately, not wanting to idle in gear, hard starting etc.. I was told it was more than likely an ethanol problem. I put 3 oz of sta-bil ethanol treatment in the gas (30 gal...
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    Vaccum Lines?

    I rebuilt the motor and of course i forgot where the vac lines go. I think i have all of them back right except the one at the very bottom of the crankcase housing on the front side. it has a little plastic fitting that it hooks too. Does anyone have a diagram of where they all go to and from...
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    1998' 90HP Johnson idle problem

    I have a 90 HP 1998 model (J90SLECM) . I just rebuilt the PH and rebuilt the carbs. New pistons (original size) new rings, (original size). and so forth. I am finding that it is burning a lot more fuel and oil than i remember before. Even before it needed rebuilding. I have problem with it...
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    1998 90 HP Lower main crank bearing

    "Is the lower main ball bearing on the crank presses on or should it slide off and back on etc. for replacement. I cant get mine off the crank, (However the motor did have saltwater sitting in the bottom of the crank case for a month.) The answer is obvious to me if was not presses on to begin...
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    Stator Gooop 1998 90 hp

    Last night I removed my flywheel on my 98' 90hp Ocean runner. Under the stator there appeared to be this random puddle of melted then hardened plastic. (enough to make it a pain in the A$% to split the motor sections and remove wires to the stator. My stator still charges fine and looked ok...
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    98b Johnson Split liner bearing

    "Last night I started digging "Last night I started digging (deep) into my motor to resolve my compression issues ( CYL 1-4 120,60,30,60psi). This motor has close to 6000 hours on it and everything came apart nicely, it looks like it has 60 hours inside. Im replacing the conecting rod bearings...
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