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    Options for Yamaha Trim Tilt

    I did some damage to my unit trying to remove frozen bolts and will likely now need a new assembly. 2003 Yamaha Trim Tilt Assembly for a 200 HP HPDI As I look into I see other manufacturers are less expensive for the Showa units. Are they the same Showa unit for Honda, Suzuki, Yamaha...
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    HPDI / Remote tank issue?

    This may be normal but I am not sure. I had an oil pump fail on my remote tank. I have since replaced it and it is now functioning. However, the remote tank oil pump only runs when the engine is running. If the key switch is on without the motor running the remote oil tank pump will not...
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    200 HP HPDI Maintenance

    Last year I picked up a couple used 2004 200 HP HPDI that were well maintained with only 400 hrs on them. I upgraded my fuel water separators to the Rancor 2 micron and ran the season for 200 hours without a single issue. I keep reading about all these additional filters that makes me real...
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    2003 HPDI Shift Shaft issue

    The brass end came off the motor shift shaft. When I removed the lower unit it was attached to the lower unit shift shaft and not the upper shift shaft. It is in tact and slides easily over the splines. The motor shift shaft is stainless steel and the end piece is a female spline made of brass...
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    Motor Swap Advice

    I am replacing 1997 Yamaha 200 HP Saltwater Series motors with 2003 Yamaha HPDI 200 HP motors. It looks like everything will bolt right up and all wiring is the same. Am I missing something here? Is it that easy? One thing I see definitely different is that the 2003 had an oil pressure gauge...
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    Warm Start Issue

    Yamaha 200 HP Carb. 1997 Saltwater. S200TXRV Problem: Will not start after running for awhile and shutting down. Typical scenario would involve returning to the dock, shut it down, back the trailer to load, motor will not start. Flooding of plugs, but I am starting to think that's from...
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    1997 S200 Throttle Cam adjustment

    I have been having an issue with sputtering on the engine. i decided to take advantage of some fishing downtime and clean up the carbs. In the process, the middle carb adjustment screw for cam roller came loose. This screw is reverse thread and appears to hold a plastic roller which sits on a...
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    Whats needed? Yamaha 200 HP 2-stroke carbs

    I am bringing back a boat from being stored and unused for two seasons. Every indication is that they were winterized properly. I am looking for advice as to what exactly I should be doing to these motors before getting them wet. Motors are 1997 Yamaha 200 HP carbed. L200TXRV / UI 500576 and...
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    Liferaft Help

    I am in the process of researching life rafts and would like some advice and suggestions. I am strictly a recreational fisherman who will fish 30+ miles off the coasts of MA/NH/RI. I would like this raft for my own personal comfort. As I get into researching there are a wide variety and costs of...
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    Cruisers Rogue 2400

    Just purchased the next winter project. It is a Cruisers Rogue 2400. Has a single 454 merc with a carb and a Bravo 1 outdrive. Boat is going to need all upholstery, buffing and decals outside of any unseen mechanical issues. It appears that there are very few, if any, of these out on the water...
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    Exhaust Manifolds / 2 part question

    5.7 L MPI / 2009 I leak checked my exhaust manifolds and have determined both are leaking. Osco 7114B2. Original problem was anti-freeze in exhaust system and getting on plugs. My setup has the manifolds cooled with antifreeze with a blank off plate separating the riser elbow. 1. Can my Osco...
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    Antifreeze in exhaust ports

    Just pulled off the exhaust manifolds and discovered antifreeze in the manifold exhaust section and in the exhaust ports of the engine block. I have tested the exhaust manifolds and there are no leaks. Liquid cooled closed system. No sea water. Is this a sign of a blown head gasket? Will a...
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    Willing to play the prop game

    OK, Here is what I have learned and what I have. Overall I want to improve performance to quicker plane and maneuvering in tough seas. Current setup: 1979 Grady White Kingfish 254 2009 Pleasurecraft 5.7 L / (MPI) 2013 SEI outdrive / (Alpha 1 Gen 2) Prop: 16D 13P Quicksilver 4000 RPM = 22 knots...
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    Spark Plug Gurus needed

    2009 5.7 L MPI Original plugs were iridium gapped at 0.06. Will any harm be done by crossing to a conventional plug with a tighter gap? Reasoning: I have been having a moisture problem and I think the small tip of the iridium with the wide gap is creating a spark issue at start-up. If I pull...
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    Trim Motor causing power loss?

    While under load if I try to adjust trim the engine surges down drastically losing major power while the trim motor runs. I believe this is due to an excessive motor draw from the trim motor. Mercruiser Alpha 1 Gen 2 (Late 1990's trim assembly) 1. Thoughts on this? 2. How are the SEI...
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    5.7 L Surging RPMs

    Rpms are surging and I cannot maintain a consistent RPM. New cap, rotor, plugs, wires. RPMs surge about 1,000 RPM. The problem is more prominent without a load than in the water. Fuel pressure is a steady 38 PSI. 2009 MPI / 5.7L connected to a Alpha 1 Gen 2.
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    Alpha One Gen 2 Bellows Ring

    I had to pull the outdrive for a impeller replacement and the metal ring for the u-joint bellows came out with the outdrive. I replaced it by re-inserting it. No adhesive or silicone. Should I do something different? Is it a concern?
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    PMC 5.7 wont run past idle

    2009 PMC 5.7 L with "PMC Fuel Control Center" (FCC) with low and high pressure pumps with a return system. Motor M# 50-570-06, Ser# 690034 I have changed all fuel filter/seperators (including the internal one in the FCC), plugs, wires, Distributer cap. Problem occurring after de-winterizing...
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    Pleasurecraft Mercruiser crossover plug wires

    Struggling to find the correct plug wire kit. The engine is a 2009 Pleasurecraft Marine. 5.7l mag mpi Model 50-570-06. Serial 690034. Date 03-09 Can someone help with proper serial range for a mercruiser?
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    Water on plugs

    I started having problems this season starting the engine. Went through everything and noticed water on the plugs and plug threads. I pressure tested the cooling circuit (antifreeze) and all is OK. Can condensation cause this much of a problem or is it possible both risers or exhaust...
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