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    1997 C40MLA 2 stroke 4 cylinder primer system?

    Well I took the little primer bulb off and managed to get some carb cleaner into the little holes. Let that sit for an hour and then it was able to pull solvent into itself from a little cup so I put it back on and now it's sending fuel where it's supposed to go. It fired on the first pull and...
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    1997 C40MLA 2 stroke 4 cylinder primer system?

    Mercury Parts Catalog The pics I get of the carbs show a cover plate (part #22). Mine doesn't have that part just a plain hose barb on the side in place of the cover plate. That's just one example of a difference.
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    1997 C40MLA 2 stroke 4 cylinder primer system?

    How about this? Is the "check valve" or whatever it might be called in the bulb like it is in gas tank primer bulb?
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    1997 C40MLA 2 stroke 4 cylinder primer system?

    The primer bulb doesn't move gas to the carbs when you need it to for a cold start. When you push it the gas in the tube just goes back into the upper carbs bowl and when you release it the same amount comes back up the tube but never goes far enough to make it to the carbs for priming. The rest...
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    1997 C40MLA 2 stroke 4 cylinder primer system?

    Serial Number 0G449063 I've been trying to pull up the parts list/diagram on the Mercury parts site but haven't been able to find my particular motor/carb setup.
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    1997 C40MLA 2 stroke 4 cylinder primer system?

    Manual start with the little primer bulb for the carbs. The bulb won't pull gas up far enough to then send it back down to the carbs. The pickup tube sits about 2/3 full and when you depress the primer bulb it pushes all the gas back into the upper carb but when you let it go it only goes back...
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    4 hp Tohatsu won't idle.

    Well six turns it is. Or almost. Running great now. Glad I saw that post before I took it apart again.
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    4 hp Tohatsu won't idle.

    I got the motor used and the needle cap wasn’t on it. I didn’t even know it ever had one until I saw it on the parts diagram a couple years ago. Thanks for the help. I’ll take it apart again soon.
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    4 hp Tohatsu won't idle.

    MFS4A2D 2005 Starts easy and runs fine at high idle and up but won't idle down and stay there. I've had it several years and the carb always hates sitting around not being used whether I drain it or not it wants to be cleaned. Anyway, a week ago I went to run it at home and it wouldn't idle so...
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    97 40hp Merc serial number isn't matching up with it's parts?

    "Why not use the www.mercurypartsexpress.com website?" Probably because of my first sentance.
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    97 40hp Merc serial number isn't matching up with it's parts?

    This is my first Mercury so bear with me. SN is 0G449063 model is C40MLA 1997. Just bought it, runs great, etc. Previous owner said he never replaced water pump or impeller so I'm looking up parts using that model number and I get THIS parts list. Two obvious differences are the carbs (square...
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    Impeller o-ring? question/confusion

    Thank you both. I tend to make myself nervous over uncertainties in places like water pumps.
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    Impeller o-ring? question/confusion

    95 Johnson 48 Special. Do currently available impellers for this motor require an o-ring between itself and the impeller plate like OEM or is that o-ring no longer relevant? I'm replacing the water pump and ordered a kit. The OEM impeller has a recess on the bottom for an o-ring that sits on...
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    What am I missing on this Tohatsu carb?

    Thanks everyone. That was easy.
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    What am I missing on this Tohatsu carb?

    4 horse Tohatsu. The hole in the first pic leaks a lot of gas when running. Is it supposed to have a brass plug like in the second pic? If so what's it called and how do I get one? Doesn't look like a Welch plug or at least what I'm used to. Haven't seen anything like that in carb repair kit.
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    Need part # for 2010 Yamaha F60 water pump kit please.

    Preferably with the housing. Maybe a good source for it too. Can't match it up here on iboats and it's just a general pain to find it anywhere using my phone. Thanks for any help.
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    I have power but almost nothing works. Need a little help.

    1998 22' Wellcraft CCF. Fresh batteries (even tried a second set to rule that out) but several things aren't working. I have 13 volts everywhere I've checked but pumps won't come on. Nor will the anchor windlass. Nav lights and the motor work but that's about it. The anchor windlass wiring and...
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    2001 NS40D possible head gasket problem

    I see someone just covered something like this with a 25 but I've never opened one of these up so thought I'd start a new thread. Lost all power yesterday and ran rough. Didn't want to keep running but made it back to the dock. Pulled plugs and the bottom two have water on them and there is...
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    Powerhead swap - 1999 Johnson 200 to 225

    1999 200 hp Johnson OceanPro model # J200PXEEN Would I be able to directly swap a 225 hp powerhead into this motor with no other changes? Just pull the 200 and drop in a complete 225 or are there other changes that would have to be made?
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    Financial advice?

    If you had a decent amount of cash in a bank that has been reported to be the next to go under. Todays news is better than yesterdays however. What would you do? Take it out? Where would you put it. Another bank? Which one?
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