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    4.3 MPI cooling diagram

    Does anyone have a cooling diagram for 4.3MPI 2005 Merc? Backflushing through the hoses with pink and can't seem to get the pink to come out the water intake on the Alpha leg....seems to be coming out somewhere else.....Just want peace of mind
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    Alpha GenII Corrosion

    Well needless to say I am a little disappointed after seeing the corrosion and bubbling on my Alpha drive after sitting in fresh water all summer....My anodes were in great shape but I am guessing I didnt have enough protection and the stainless prop didnt help.......I went to boat zincs.com and...
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    Fogging Honda 90 4stroke

    Winterizing motor for a friend and read the manual and cant find mention of this anywhere.....When looking at the carbs it seems impossible to be able to fog each carb simultaneously and even harder to get to them. I was always from the school of fogging....I want to do this the right way so I...
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    Marvel MysteryOil

    Ok to use as a fogging oil on a Honda 90 4stroke?
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    4.3 MPI Plugs

    Maybe it is me or the way the engine is mounted but I can't even see the plugs.....Anyone change these before???? How many hours before changing?
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    Drain Bowls or Not Honda 90 4stroke ('01)

    Winterizing for a friend of mine and I have read his manual and also a handful of threads here. I stabilized fuel going to run on muffs for 10-15 mins, shut down, change oil and gear oil, and fog cylinders. My question is whats the best thing to do drain the 4 carb bowls or not? AS the manual...
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    Cool Fuel Or Not???

    When winterizing my 2005 4.3 MPI merc I search high and low, although its tough to see low, and could not find the cool fuel module. I followed the fuel line as far back as I could from the fuel water seperator and still couldnt find a thing. DO I have this? Does anyone have an actual picture...
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    Tohatsu 9.9 power gain - carb swap??

    I have a friend with a mid to late 90's 9.9 Tohatsu outboard and he was told that with a simple carb swap he can increase the HP to 15. Is this true? Is the upgrade that simple? If so does anyone know the part numbers?:redface:
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    Disconneted Oil Inj

    Hey guys, My dad is in the market for 18-20' center console and we have found a really nice one that appear well maintained, etc but I have one concern about the motor. The owner disconnected to oil injection line and mixes the the oil/fuel mix "like the old days" .....Should this be alarming...
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    '99 4.3 Merc stalling

    Friend as above carbed motor and says that the motor fires right up and dies after a designated amount of time. He can the start back up and will do the same thing. If throttle is increased, motor will stall also. Things we have addressed already are: Replaced fuel/water sep. New cap and rotor...
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    '99 Mercrusier 4.3 Cap/Ignition ?'s

    Friend of mine has a 99 4.3 Merc with Alpha leg..Ser.# OLO96646. He has asked me to look for the cap and ignition components part numbers. He indicated that the cap is cracked and there is some charred/burt looking marks under it:eek:. This would probably explain why his mototr is not running...
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    '85 20 HP Johnson water pump failure

    Hey guys...Pops and I were out today and all of a sudden the motor stopped spitting water and got hot. I think it is safe to assume the water pump stopped working. I shut it down pretty quick and we got a tow back. What does an impeller/water pump change entail? Seems like there are 4 maybe 5...
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    Lost Oil Filler Cap

    Hit the river yesterday about 11:30 and realized I hadnt checked the oil in a few trips....so we anchored at our usual spot and decided to check after she cooled and there it was......missing oil filler cap. I looked everywhere for it and can't find it. Good thing is that there is NOT oil...
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    Launch 22 Power Options

    Colleague of mine really is looking at a lightly used 22 Launch. I love these boats and have been helping him in his search. He found a nice 2004 22 with questionable power. The boat has a Volvo 5.0GXI which I thought was slightly low for that size boat especially if he will be doing sports...
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    20HP Johnson Spark plugs?

    My dad has a 20 HP JOhnson outboard iwth the following info: Model Number: J20CRLCOS Serial Number: E6063402 My question is what plugs are recommended and also what gap to set them at. Any other recommendations besides changing gear lube/water pump? Basic tune up info? Would this engine benefit...
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    No Oil pressure and Smartcraft alarms

    Changed the fuel water seperator and then changed the oil through the drain hose out the garboard plug. Everything went fine with the fuel filter besides the fact that I had to use channel-locks to get the dam thing off . So I changed the oil filter and left the oil to drain overnight. Couple...
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    Mercruiser oil filter Part number????

    Can someone tell me what the Mercury part number is for the oil filter on a '05 4.3 MPI??? Filter that was on the boat: 35-802885T......... Slightly taller than the one I bought but normal looking on the face part of it. One I bought since the box said "for V6 and engines with remote oil...
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    Pull Drive @29 hours?

    I purchased an 05 Sea Ray with Alpha drive in October. I have no idea if the previous owner had the drive pulled to check alignment. My question is, do you think I should make an appointment to have the drive pulled and the alignment checked @ 29 hours? How much should I expect to pay to have...
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    Adding a second battery

    Need help/suggestions on adding a second battery to my rig. Cuurent set-up has one battery with and "on -off" switch
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    Merc Cool Fuel???

    Can someone elaborate on this system and what it actually does? Why do people caution about them? Also I have been hearing bad things about it lately and unfortunately our new boat is equipped with it. What should I look out for?
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