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    Mercury V6 Head part numbers

    Hey guys, I found two sets of mercury v6 heads, the two piece style from the 70's / 80's. Can anyone tell what HP they were used on? The number on one set is 96422, the other is 96531. I can't find a website that shows NLA part numbers, if anyone knows a good site please please post a link. Thanks
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    Is switching to Aftermarket reeds worth it?

    I have a 1988 Mercury 200hp carb V6, she idles a little rough and I currently have her on a Hydrostream ski boat. It was suggested to me to try high performance reeds, that the back in the day all these Merc guys were putting in Boyesen reeds for better performance... anyone here have any...
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    Yet another V6 Merc question: voltage regulator?

    This Franken Merc I have doesn’t have a voltage regulator on it. The best I can tell it’s a mid eighties xr2 block and whoever rebuilt it put all new aftermarket electronics on, stator, switch boxes, rectifier…but no voltage regulator. I’ve been running it for a few weeks now with no...
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    XR2 Spark plug question

    Looking to get a new set of plugs for my 1987 150 xr2, the guide shows two options: NGK BUHW or NGK BU8H... any opinions on which is better or what the differences between the two are???
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    1987 Merc 200 V6 blowing fuse

    When I turn the key and the motor will turn over, turn key off, then turn on again and the fuse will be blown...
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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?

    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?

    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

    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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    Cold compression test question

    will a compression test on a cold outboard be as accurate as one done on a motor thats been warmed up?
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    Does compression determine horsepower???

    I purchased a 1994 Yamaha 130 for my bass boat. It runs great. I got a Yamaha service manual for it and the specs show that a 130 should have between 134psi and 164psi. I had a compression test done on it before I bought it and it was 125, 129, 130,134. Will this motor be able to produce 130...
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    Merc 150 efi rev limiter

    Anyone know what the rev limiter is set at on the ecu from an early 1990's 150hp? part no. 824003 A10. thanks, Don
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    Prop for old Merc

    Does anyone know if anyone still sells props for old Mercs? I need one for a 1972 merc 50hp. 11 splines, an 11" or 12" pitch will work. The part number on the old prop is 48-32186A1-12.
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    1983 235hp Evinrude repower pros and cons...

    Looking to repower my 18' V-King, found a 1983 235hp Evinrude that has a rebuilt powerhead. What are the pros and cons someone can expect from this model? Did it really produce two hundred and thirty-five horse power?
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