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    Yamaha f114 four stroke noise at WOT

    First off, I apologize for posting about a random noise, as I know they're difficult to diagnose in words. That being said, here goes. I just acquired a 2007 f115 that seems to run fine. WOT is approx 5800-5900 with a 13.25 x 17 prop. My issue is that there is a whirring, sort of a squeal...
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    Starter / Electrical issue. Always cranking

    Hi, I have a 2004 Merc ELPTO 50HP. Today after day on the water, I started the engine, and noticed the starter was still spinning, even after the engine fired and was running. I loaded the boat onto the trailer, but could only get the starter to stop running is by disconnecting the battery...
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    2001 5.7 GI-A overheats

    I had a fairly extensive overhaul late last summer/fall. New block, new thermostat, new manifolds and risers, new sea water pump to name a few things. Ran great last fall (just broken in with now about 10 hours). Before launching for the first time this year about a week ago I ran the engine...
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    Throttle issue... stays engaged

    I'll try to keep this brief. I have a 2004 Merc 50HP 2 stroke. New to me motor. Took it on it's first run of the year. Shifts smoothly into forward and reverse. Seemed to have no problem getting to WOT and back to idle while underway. I did this 3 or 4 times, then what happened scared the...
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    Polishing advice

    Hey all, so I've decided I'm going to clean, polish, wax my Four Winns. I've read through a lot of the posts to get a general idea of what I need, and decided I'd ask a few questions before I order what I need to do this right. It turns out the polisher I got for xmas is NOT good for this, as...
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    Tracker hull damage. Lots of it!!

    My new to me 04 Tracker pro guide v16 has hit more than a few rocks in it's 8 year life, and I bought this thing knowing that it has some hull damage, but what I discovered when I took off the previous owners crappy patch work are some serious cracks. I've also discovered some small cracks that...
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    2004 16' tracker deck repair

    Re: 2004 16' tracker deck repair Here's what I had done with the PT. It actually felt quite solid. Not sure exactly how long this type of repair would have lasted. I guess I'll never know :rolleyes:
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    2004 16' tracker deck repair

    Re: 2004 16' tracker deck repair Here you can see the underside of the floor I removed. If I cant find an aluminum stud, then I guess I'll go with a pine stud and some epoxy resin. Thanks again for the help.
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    2004 16' tracker deck repair

    I just purchased a this boat. It's a pro guide v16. The previous owner had replaced the decking with marine grade plywood when the carpet was redone last year. The problem is that for some unknown reason, the main deck area was replaced with 3 strips of plywood, making it feel flimsy. I just...
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    5.7 Mystery rattle after repower

    Hi Folks, I've recently replaced my 2001 5.7l GI-A DP-SM drive with a new 350 block and heads, new manifolds, new risers, knock sensor, shift cable, gimbal bearing, spark plugs, oil pan, gear lube...to name a few :)...First time out with the new engine, the heads were found to be defective, and...
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    5.7 GI Knock and surge loss of power

    Hi and thanks in advance to anyone who can point me in the right direction. First off, let me say that I am new to this engine and inboards in General. I have just acquired a 2002 Four Winns 248 Vista with this 280 hp 2002 VP 5.7 GI and a VP DP-SM drive. Aside from a sea trial prior to...
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    Dumb mistake dry running

    I was winterizing my 97 90HP Merc 2 Stroke, and totally forgot to put the muffs on. It ran for about 30 seconds or so before I noticed and killed the engine. I immediately put put the muffs on and ran it for another 6-8 minutes. It still had a strong stream coming from the telltale. How...
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    90HP Merc Idles in water, not on muffs

    I've got a 1997 90HP Mercury 2 stroke.Any posts I've seen all seem to be the other way around. Well I idle fine in water, but when I come home to flush, it runs for about 2 mins, then stalls. I'm thinking it must be a water pressure issue, but would that cause me to stall. It's peeing good...
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    Mercury 2 stroke 90HP Smoking badly

    My 1997 Mercury 2 stroke 90Hp just started smoking badly at idle or trolling speed. One minute it was fine, then all it just started smoking. It is oil injected and also went through way more oil then normal. I've recently had the carbs cleaned and fuel pump redone. At anything over a...
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    Prop replacement

    Hello, I hit a log today and bent a blade. I was able to repair it slightly using a rubber mallet, but it's still not perfect and I've decided I need a spare prop anyway. The only #'s I could find on it were stamped into the side as follows.....4877346a4519p. Obviously it's a 19 pitch, but...
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    90hp Merc Power Loss

    Ok, so I have a 1997 Mercury 90 hp 2 stroke oil injected. I bought this last fall and am somewhat unsure of the history or maintenance practices by the previous owner. It was used on 2 outings last fall without issues before being stored for approx 6 months (stored with a full tank and marine...
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    Mercury 85HP 850 Thunderbolt lower unit compatibility

    My forward gear is bad and needs replacement. Upon searching around, it seems would be cheaper to replace the lower unit / gearbox. I have a 1976 850. Will any 850 lower unit fit? I've heard that the fleetmaster is built for a racing model. Does anyone know if it will still fit as I've...
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    Merc 850 wont go into forward gear

    So I was cruising along today when I heard a knocking sound coming from the outboard. Then a short while later there was a loud knock which seemed to come from the lower unit. I immediately put into neutral and tilted my engine up as it felt as though I had hit something. The prop was fine so...
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    '76 Mercury 850 wont crank

    I've just fixed my PTT, now this. I just took my boat out of winter storage last week and it had previously started with no problems. When I turn the key I get click only, but it wont turn over. How can I test the starter or solenoid? Is there possibly a simpler problem that I'm missing...
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    Merc 850 Tilt / trim stuck up and only spins

    Hello, I apologize if this has already been answered. My problem is that today when I pulled my boat out of winter storage and tested my tilt, it went up fine, then the pump/motor sounded as if it "disengaged" from something. I'm somewhat of a newbie, and dont have a lot of experience, but it...
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