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  1. #1
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    Question Please Help! 2005 200hp 2-stroke EFI 3.0L

    TLDR: I hit a sandbar a month ago, motor hasn't ran properly since. A bunch of different things have been done to the motor since then (including new water pump, spark plugs, compression test, and plastic prop hub). However, every time it hits the water it pops and starts to life, it will be peeing, I accelerate to get on plane, it hits a rev limiter before being on plane, I let off and bring the boat down, it stops peeing. Mechanic is giving me totally different information of how boat is acting during test drive and in shop. I am at a loss of what to do. Please help! Motor and owner history/info is in first paragraph along with incident explanation. Second paragraph is damage assessment by me. Third paragraph is what mechanic is doing and reporting to me. Fourth, is my questions and concerns. Sorry for the book, mods if this needs to be fixed/moved please let me know, new member.

    Hey guys, I have owned a 2005 Stratos 295 pro xl with the above listed motor for a little over a year now (my first boat). 276 hours on the motor, I am the second owner and got it at about 250ish. Compression was perfect at time of buying. Boat ran amazing and I loved it. The morning of the day this incident happened (08/05/2023), I had topped off the oil tank from about half empty. It had been a long week of pre-fishing after work almost everyday and it was Saturday. We were only out for the morning that day, 6 hours at most, idling, checking spots, and then ended fun fishing in new areas. We were headed into the marina idling and all of a sudden I found myself partially lodged on sandbar (drivers side in the sand). Like a complete idiot, I tried to power off the sandbar in the other direction. Of course, the boat only buried itself deeper and the motor along with it. All of a sudden, I came off the sandbar and the motor started alarming a single beep really loud at me (Guardian Mode I assume, I thought it was overheating b/c of being in the sand and running). I shut it off immediately and trolled away a little bit. Conveniently, this was right in front of the marina at the entrance to the backwater, so I attempted to turn the motor back on to just idle in (figuring maybe it just needed to take in water and cool off). I get the same single beep just blaring BEEEEEP! at me. However, the beeping stopped after like 5 seconds, so I idled to the ramp and took out of the water to assess damage.

    Prop was bent, not too bad though, still had its shape just a couple little bends. Small rocks in the intake holes on lower unit and the lower unit looks like someone took sandpaper to it. After seeing everything and checking the thermostats, I kept trying to flush the motor to get it to start peeing again. I did eventually get it to pee and no weird sounds, so I said a thank you prayer and left the launch without ever leaving the no wake buoys to get on plane. I had a tournament the next day, so I tested it out in the morning and it wasn't peeing again at first. Then a weak stream. I eventually flushed out more sand until it wouldn't push any more out and it would pee normal. I then tried to get on plane. The nose would lift and right as it started to plane out, the engine hit a rev limiter. I let off the throttle and just let the boat go back down. It stopped peeing after that. Hoses were all clear, along with t-stats. Took it out of the water and noticed a little bit of smoke coming from the lower unit intake vents. My battery compartment also smelled like burning electronics, but I think this is an unrelated issue since I think my livewells blew a fuse. I took it to the mechanic shop after I felt I did everything I could do, and I had been talking with one of them (a personal, long-time friend) throughout this entire process and letting him know. Used the big motor on tourney day to only idle out to main channel, attempt to get on plane, then back in.

    First job they did was replaced the water pump and fuses in battery compartment. They gave me the boat back. Put it in the water, the motor popped but came to life and started smoking more than it ever had before. The mechanic told me to try to get it on plane, I was worried about the smoke but I did it anyway. Boat was doing the same thing. Peeing, accel, nose up, rev limiter, back down, no more pee. Took it out of the water, and checked the oil reserve tank immediately bc my limited two stroke knowledge tells me smoke=no oil. Keep in mind, I had just topped off oil before it went to shop. Sure enough, empty oil reserve tank (or at least very near empty, hard to tell). 1.5 gallons of oil later and it was full. I called the mechanic and explained I had just topped it off, how could it be empty? He didn't know because he did not do the service on the motor (Truthful, they put names on the jobs they did). Boat goes back. Second Job, they flushed out the motor even more and found a couple rocks, told me motor went into Guardian Mode several times, Compression was perfect still, they replaced all spark plugs, replaced the propeller hub (old one was aluminum, cracked in four places, they put a plastic one in), and told me they went for a test drive on a small local lake and hit 50mph after putting spark plugs in. I took the boat to the water, and the engine wouldn't even start. I was so mad, I just took it to the shop and dropped it off that night and texted the mechanic my issue. By some fluke, the fuel pump came unplugged. They gave me the boat back. I took it out tonight first time, it popped and started to life again (never did this before the sandbar incident BTW) and a plume of smoke came out but eventually died down after 10 ish seconds. Oil was full this time. Once again, it's peeing, I accelerate, nose comes up, rev limiter, back down, not peeing anymore. I called the mechanic and asked how he got it to 50mph when I cannot even get it to go on plane? He sincerely apologized and said it was their master technician that test drove it, he wasn't there, and he will question him about it. That is where we are now.

    What do I do? I have offered time off of work to come in and talk with them now because it has been a month and $750.00. I think they really are good mechanics, I have had bad ones before, but now I am worried with the test driving story and the oil issue. Has anyone else had their motor do something similar? Is it stuck in Guardian Mode? Should I be worried they haven't checked the lower unit for damage (oil/seals) or the injectors for a clogging/timing issue? All mechanics working on this motor are Mercury certified. Sorry for the book, but I have read previous posts on here that lack details. I have tried to give you guys everything to date. I have photos of propeller if needed, mechanics tell me the bends are not bad and I shouldn't be worried. Also have service receipts.
    Last edited by Natedawg717; 08-28-2023 at 10:26 PM. Reason: Clarification

  2. Member lpugh's Avatar
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    #2
    New prop for starters
    Find another tech.
    Thank You Leon Pugh

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    #3
    Quote Originally Posted by lpugh View Post
    New prop for starters
    Find another tech.
    I appreciate the response (you too Joe). Prop is a 24p Fury prop. They say it can be repaired, but I would get a spare anyway since I am running the river. However, tachometer gauge isn't reading properly, so I cannot tell if I had the right prop to start with. I asked them to look at replacing the gauge. A lot of guys run 26p Raker IIs or Tempests so I am concerned that maybe I need to go up in pitch?

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    ^^^^^ for sure have a prop problem the way it sounds , observe the connector on the fuel pump wiring it needs a tie strap to hold it away from cowling or that will happen again , faith is a good thing but im with LEON on that suggestion
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #5
    boat hull model year and length , dont let some beater work on that prop only a few i know in this country that can fix it right
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #6
    Quote Originally Posted by JOE54 View Post
    boat hull model year and length , dont let some beater work on that prop only a few i know in this country that can fix it right
    2005 Stratos 295 Pro XL, 19' 6". Do you have recommendations? I was going to try to have prop repaired regardless.

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    Marks PROPS , would be a good one SHELBYVILLE ,IND. prob be good one for ya , 25 TEMPEST be good prop also
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #8
    Quote Originally Posted by JOE54 View Post
    Marks PROPS , would be a good one SHELBYVILLE ,IND. prob be good one for ya , 25 TEMPEST be good prop also
    Sounds good, I'll give them a look. I thought a 25p would be about right too. I felt like the boat was a bit underpropped. Thank you!!

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    #9
    yep
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #10
    Update. I was wrong about the pitch of the propeller. The tech is telling me its a 26p fury and not a 24p fury. They believe the propeller is suffering from cavitation because the prop needs plugs in the two vent holes on it. They put a 24p four-blade prop on for a test drive today and said it ran amazing. I asked why the motor was smoking and they said they think it was guardian mode raising the oil concentration thus making the engine burn more oil. The motor stopped pissing after being on plane because there was another rock that clogged the pee hole. It did not stop pissing today according to them. I do not have the boat back yet, but I should have it around Tuesday. Anyone who knows more about these engines than I do, does this sound like a logical reasoning/fix to the issue? Thanks.

    Once I have the boat back, I will be sending an order to Mark for prop repair.
    Last edited by Natedawg717; 09-01-2023 at 07:40 PM.

  11. Member lpugh's Avatar
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    #11
    Quote Originally Posted by Natedawg717 View Post
    Update. I was wrong about the pitch of the propeller. The tech is telling me its a 26p fury and not a 24p fury. They believe the propeller is suffering from cavitation because the prop needs plugs in the two vent holes on it. They put a 24p four-blade prop on for a test drive today and said it ran amazing. I asked why the motor was smoking and they said they think it was guardian mode raising the oil concentration thus making the engine burn more oil. The motor stopped pissing after being on plane because there was another rock that clogged the pee hole. It did not stop pissing today according to them. I do not have the boat back yet, but I should have it around Tuesday. Anyone who knows more about these engines than I do, does this sound like a logical reasoning/fix to the issue? Thanks.

    Once I have the boat back, I will be sending an order to Mark for prop repair.
    propeller is suffering from cavitation because the prop needs plugs
    Not at all likely if prop to pad is correct
    24 fury 4 will run 3 to 4 mph slower than a 3 blade and soon to become a 3 blade as well!
    Last edited by lpugh; 09-12-2023 at 08:16 AM.
    Thank You Leon Pugh

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    #12
    Quote Originally Posted by lpugh View Post
    propeller is suffering from cavitation because the prop needs plugs
    Not at all likely if prop to pad is correct
    24 fury fury will run 3 to 4 mph slower than a 3 blade and soon to become a 3 blade as well!
    I have not measured prop to pad yet. That will be the first thing I do when I get the boat back along with getting the serial number for the motor. Also this boat never did this before the propeller bent, so either way I will be ordering a 25p tempest to see if that fixes the issue. Never been a fan of 4 blade props especially on a low river like the Mississippi. Still worried about the oil and smoke though.

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    oil /smoke does not sound logical , prop and pebble does ,wouldn waste my $$$ on the 26 gonna be toooooooo big anyway for a 200 24 FURY probably be okay report back with results
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #14
    Quote Originally Posted by JOE54 View Post
    oil /smoke does not sound logical , prop and pebble does ,wouldn waste my $$$ on the 26 gonna be toooooooo big anyway for a 200 24 FURY probably be okay report back with results
    Is it possible to get the 26p repitched to a 25p or would that still be too expensive? I'm not sure how prop repair/modification works.

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    Quote Originally Posted by Natedawg717 View Post
    Is it possible to get the 26p repitched to a 25p or would that still be too expensive? I'm not sure how prop repair/modification works.
    i wouldnt
    .................................................. ...the scariest thing in life is the unknown ...................................

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    #16
    Update, finally got the boat back with a prop the tech is letting me try. Everything works, smoke when the motor starts but fades quickly. It's a four blade 24p prop. Boat rips. Saw 69.8mph today and had more to give. It was dark when I got back, I will get a prop to pad measurement before I go out again this week. Should I take the four blade or go with a 25p 3 blade? Tech is offering me a deal on the four blade. Thanks all.

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    both or just 3 bld , keep 4 blade for spare set up right its prob gonna overrev that 24 in cool weather
    .................................................. ...the scariest thing in life is the unknown ...................................

  18. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #18
    I don't see where you've addressed the running it up through the sand and now it sets down and no telltale.

    I've seen several like this that, once the powerhead was removed, had 1/2"+ of sand sitting in the adapter plate and tuner, as well as anywhere it could hide out in the water supply passages. No matter how many times you backflushed or blew things out... you got sand the next time you tried to hammer down (again). Only after complete disassembly and removal of the sand from each component, flushing the block for 5-15 minutes over clean buckets until no more sand exited (while hanging from a hoist), rinsing and washing out the tuner and adapter plate, etc, was the attempt considered a "success".


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    #19
    Update. I got some time to measure out prop to pad quick before I headed out after work. My measurement showed 3.75". I got some engine specs for you guys as well (below). Motor ran perfectly, although i notice with it trimmed down all the way it bogs a little bit if you really try to jump on pad quick. Would it have anything to do with motor sitting too low in the water and water getting close/in exhaust? As far as sand, I have had no issues with peeing since getting the boat back this time. Although, the motor sounds different than it did before. Not sure if I mentioned before, but tech found two fouled plugs. Motor got all new spark plugs and that's when the different sound started. It went from a constant chug chug chug sound to inconsistent chugs with almost a humming sound. Obviously I have no clue what that could be.

    1B010843
    2. 2005 Mercury 200hp EFI 3L
    3. Was 26p 3 blade Merc fury, now is a 24 pitch 4 blade Solas Lexor.
    4. Unreadable, analog tach not working right
    5. Unknown if reading is accurate. Idle around 5, WOT is around 15.
    6. Analog Instruments, looking to buy smartcraft to console fishfinder possibly depending on price.
    Last edited by Natedawg717; 10-19-2023 at 10:23 AM.

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    id raise it an inch and run it , you need your gages working correctly
    .................................................. ...the scariest thing in life is the unknown ...................................

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