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    Need help identifying old Merc carb

    It's stamped 11 5 86, but... this is a real Franken-Merc motor...The front half, carbs/intake/reed block look older, like from a different motor...
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    Need help identifying old Merc carb

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    Need help identifying old Merc carb

    I have the air box, I believe this is a pre-1990 model.
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    Need help identifying old Merc carb

    No, a set of three...trying to find the right gaskets and parts for them...
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    Need help identifying old Merc carb

    Off of an old V-6, part #1374-5427-c (or is that a casting number?) and WH. It also has 41-11468 stamped on it. Trying to see model/year/hp it's off of, thanks.
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    Fuel dripping from carbs...

    Picked up a very used rebuilt Merc 150 xr2, at idle it drips fuel from the carbs, especially the middle one. When I squeeze the primer bulb the carbs fill and don't overflow, It happens while it's running. Compression is 112-115 on all six.
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    1982 7.5 hp Johnson compression numbers?

    Checked the high speed jet and that was clean and clear.
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    1982 7.5 hp Johnson compression numbers?

    Spark is good, throttle linkage is ok and appears to open the carb wide open...but, checking the prop...with the motor in neutral and spinning the prop by hand it seems not to spin as freely as it should, it turns easy for 3/4ers of a turn then there's some friction. It appears as though someone...
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    1982 7.5 hp Johnson compression numbers?

    Guys, just picked up a 1982 7.5 Johnson 2-stroke. It starts and idles great. Trolls down soo slow its impressive, but it doesn't have have the full speed power it should. I did a compression test pulling the starter cord 5 times on each cylinder getting 90psi on top and 95psi on the bottom. Is...
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    Does this sound like a bad head gasket?

    Racerone was on the ball, I replaced the fuel pump and the gasket and that did the trick. Thanks, Guys!!!
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    Does this sound like a bad head gasket?

    Back when I ran the boat for several weekends then all four plugs, especially the two bottom ones would look fouled to me, this test took 20 minutes with four brand new plugs, I trolled out from the boat landing, opened her up, ran across the bay turned around and went back. Three plugs still...
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    Does this sound like a bad head gasket?

    I'm having issues with my 1994 Yamaha 130hp two stoke, Today I put in four brand new spark plugs and went for a ride, for about 5 seconds it ran at "full power" then dropped down to 4,000 rpms. Ran back to the dock and the #2 cylinder spark plug was black, the other three looked good. Does this...
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    Yamaha 130hp fouling plugs

    thermostats checked out "ok", I'm considering trying a slightly warmer spark plug. I'm currently using NGK BR9HS-10, I'm going to try BRHS8-10.
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    Yamaha 130hp fouling plugs

    it's moving freely back and forth as it should...
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    Yamaha 130hp fouling plugs

    Got a 1994 Yamaha 130hp 2-stroke, it keeps fouling up the plugs... I checked the compression and it's 130,130,130, 127. Ran across the lake today wide open and stopped at the dock and checked the temp with a laser thermometer, the highest temp on the top of the block was 110 degrees. the water...
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    Can a 1984 Evinrude 6hp be upgraded to an 8hp?

    Does anyone know if a 6hp can be easily converted to a 8hp? I have a 1984 6hp E6RCRM.
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    1967 Johnson 9-1/2 idling issue

    my 1967 Johnson 9-1/2 starts and runs great except when I turn it down as slow as it will go, she will idle very slow for 30 seconds or so than speed up on its own for 10-15 seconds then slow back down again. Fuel pump? carb float? any ideas?
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    Spark plug crossover question

    I have a 1994 130hp Yamaha, the plugs that came in it were NGK BR9HS-10, the auto parts store didn't have them and told me Champion QL77JC4 came up as a equal replacement. Is this true? If not what over plug can be used?
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    Did leakdown test, will a new head gasket help?

    Ten years ago I got a used 1994 yamaha 130 2-stroke. I did a leakdown test today and the two cylinders on the left side tested good 5-6psi leakage, the two on the right are at 10psi. Would replacing the head gasket help?
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    Converting 2.4 Merc EFI to 200 carbs

    changing a 200 efi to carbs, which air vent jet should I use, two are listed .084 or .096? it will be used in Minnesota.
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