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    2000 - 200HP OX66 - Fresh Water Flushing Issue

    Here's something I am trying to get my head wrapped around. I have twin 200's. One has a newer powerhead - both are running well 'at the moment'. Both are running water through their systems when on and keeping things nice and cool. Both pee holes flowing nicely. The older of the two will...
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    Water Fuel Separator OEM or aftermarket ?

    Want to replace water fuel separator's on 200 HP OX66's after market ok or stick with OEM ? f
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    Shop Manual for 2000 200 HP OX66 ?

    Hi there. New to a pair of 2000 200HP OX66's. Would like to know if anyone has and can share a downloadable Yamaha shop manual ? Thank you
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    9.9 2 stroke ‘91 cooling issue

    )&£¥>^* !!! Feel better already. Engine starts and runs perfect. Water flows out of telltale at idle, while in a large barrel. When put into gear, and brought to a higher RPM, the telltale stops flowing. When put back into neutral and idle, the tell tale will not return to function. Replaced...
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    Cool Fuel Pressure Regulator - Testing

    Engine is a 2003 5.7L 350/300HP. Narrowing down a low fuel pressure issue. Removed the cool fuel fuel pressure regulator ( a real bear to get to and remove ) A few questions: I'd like to test the fuel pressure regulator's function while out of the boat - is this possible ? If so, how do you...
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    Bravo 3 overheating - oil expansion

    I believe I've assessed that my 2003 Bravo 3 drive with 1100 hours ( I've had engine and drive since new - so I know how she performs ) has an overheating issue. I've noticed that after running over 4000 rpm's that the drive oil reservoir level will rise considerably - even overflow over time...
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    5.7L 350 - 2003 - MAP/ MPI Horizon - Water Distribution Housing ISSUE

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    Replacing Large Areas of Wet Hull ?

    Looking at a valuable sailboat that I can buy for a bargain price due to wet core ( for the DIY'er ). I have not seen the boat yet and am doing my pre-work to assure its not more than I bargain for. It has quite a bit of hull and deck delimitation with end grain balsa the composite material...
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    2003 5.7 350/300HP MPI - Sporadically Tough to Start

    It's been a few seasons where the engine will either start on first turn of key, or it will take 3-5 attempts. She has 1030 hours with 95% of them at 3100 rpm's. And, taken care of well ! Recently chased down a gremlin that had me replace many of the sensors ( turned out be a loose dizzy ! )...
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    4 HP 1972 Yachtwin - Stalls After 15 min

    Been nurturing this motor for 20 years ! Usually runs great. Starts right up. Used very infrequently. Read about this stalling issue... here’s where I at: plugs new, impeller/ housing new run in saltwater or testing in a large pail of fresh water exhaust water from ‘8 holes’ is hot but...
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    Starting Batteries - Best for 5.7L - 350/300HP MPI Horizon

    Boat has (5) year old batteries - (2) of them. The boat has been sluggish starting when not used after 3-5 days or more. I've read upon a few things it could be the batteries. After (5) years, I feel I should replace the batteries either way. What is a really good, proven brand and spec...
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    Proper Fuse ? for Halogen lights

    Running (2) 50 watt, 12 volt Jabsco flood lights. Using 18 gauge marine rated wire. The longest RUN from the (+/ fuse ) source to the light is 14'. The (-) is 10'. Want to be sure I use the right amp fuse. Many sources online say; voltage / volts X 1.2 is how you calculate it. BUT, I know...
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    DF 2.5 Fuel Shutoff ??

    DF 2.5 4 Stroke. Year 2013 - Mint condition. My question regarding the fuel shutoff -- when I store the engine, I turn the fuel shutoff to stop fuel flow letting the engine run and starve of fuel... She eventually stalls. I added a small fuel filter after the shutoff and I clearly see that the...
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    SUZUKI DF 2.5 Remove Bracket Stopper

    I have a 2013 Suzuki 2.5 for a small sailboat. Can't tilt the engine up due to the plastic bracket stopper ( the preventer that does not allow you to tilt motor unless it is facing aft ) The motor bracket mounted to the boat is low so when engine is turned off and I want to tilt her, the...
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    Polishing Windshield - With a Polisher ?

    My boats windshield has a lot of water spots. Nothing! takes them off - no chemical and most hand-mechanical things. The only thing I've used that works is a rotary polishing wheel with 3M Compound. I have more water spots - not like on a wine glass, not heavily etched either - and some light...
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    Mercathode antifouling ?

    Have had same engine for 15 years. Mercathodes a pita. Not sure they even function... my question - is it possible to use an anti fouling paint on the housing of this without a negative affect - Obviously, not painting ‘the wire’ or near it. Mine gets fouled up pretty badly each season...
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    Bravo 3 (2003) O-ring shaft/spline placement ?

    I always replace these rings each year but have had a brain f*rt ( always wonder if the hard drive is getting too old or just storing too much info ! ) and don't remember how many, where ? I've seen varied pix online - some with (2), some with (3). I do recall that nothing goes in the shallow...
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    2003 5.7 350 idler pulley click ?

    Replaced top, port idler pulley for serpentine belt last year due to a click sound - new one clicks too. Only for first 15 minutes, once warm - it stops. What is causing this? All looks aligned properly. Thx
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    Raw Water Pump - Pulley Press

    Need to install the serpentine pulley on a raw water pump for a 2003 5.7 freshwater cooled, closed system. I know there are some areas that need to be addressed - the Mercruiser shop manual seems to always be void of these types of important specifics. A few questions - what is the best...
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    Raw Water pump ( with Air / purge fittings ) - lube inner pump ?

    Bought a spare raw water pump for my 2003 5.7 MAG MPI Horizon that has the air pump fittings for pumping air into the system to purge raw water out ( a system I will not rely on as it has proven 'unreliable' ). I bought this used pump housing to rebuild and swap out with the existing one ( then...
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