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    New starter solenoid has no terminal for purple wire??

    You are correct. If the pur/yel wire is present at the starter wiring harness you need the outside primary stud. Get the right starter, changing the wiring would be beyond acquiring the correct part
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    Help understanding vacuum test

    Never tried the dwell setting. I've an old merc o tronic analog for my antiquated ventures I think I promised a story a while back....did tell, to bondo.
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    help with iffy gas?

    Years ago when I drove a beater I'd pump old, rotten, water contaminated gas out the boat and into the car. Ran fine But, car does not equal boat. Remove icky fuel, clean tank best you can, start over fresh.....
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    1989 4.3 mechanical fuel pump replacement

    Good call. 4.3 has gone thru some changes over the years.....
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    1987 MerCruiser 3.0 Flywheel size

    Good info, thanks
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    Help understanding vacuum test

    Yep First one was a Mac tools branded one Got the above pic/mentioned one via Cornwell, I think brand is Innova? In any case, current light provides ample support for investigation
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    2015 Mercruiser 4.3L TKS - Engine stall after 30 minutes; Unable to restart at 1/4 throttle

    Based on info provided, fuel supply sounds like a likely culprit but would not rule out shifting system, mainly lower cable binding causing shift interrupt switch engagement incorrectly
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    Help understanding vacuum test

    I love my timing lite It's the second advance light I've owned, first one suffered from belt/wire introduction. What a mess.... Definitely use much care with your wired light, it has many uses beyond checking/setting timing. The rpm factor alone helps immensely with troubleshooting
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    2003 Merc 5.0 MPI no start, intermittent spark

    Um.....OP did that test with a rinda Guessing they found a transmission temp sensor at fault based on provided info?
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    DIY : How to dry a wet phone from boating .

    Yeah, new phone = free Time and young people fret, too long....
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    Which carb kit please?

    If ordered off this site chances kit will be sierra. Not a bad choice but can confirm merc kit has all essential parts
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    1989 4.3 mechanical fuel pump replacement

    Merc 4.3L with carb used electric fuel pumps for a bit as well, along with some 5.0 and 5.7 OP mentions the "overflow/vacuum line" which to me indicates a mechanical pump. You posted a link to a mechanical pump yet mention an electric? FYI OP, the clear yellow line isn't a vacuum line, just an...
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    1989 4.3 mechanical fuel pump replacement

    Unknown if part number is correct but will say if there is fluid in the overflow (yellow, plastic) line you'd best inspect what said fluid is If it's fuel, yep time a replace the fuel pump. If only oil, may just need a new gasket
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    1987 MerCruiser 3.0 Flywheel size

    Like this info 12 3/4 is older gen, 14 is newer?
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    Help understanding vacuum test

    Didn't even notice the in gear reference, agree 100% with chris
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    Which carb kit please?

    9565 is the key # in your carb number sequence. Kit is available through mercury, sorry dunno the part number rn. Only reason I say this is I rebuilded a 9565 last week, easy
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    89 centry palimino with a 3.7 mercruser charging issue.

    No resistance is a red flag. Are you checking AC or DC volts?
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    4.3 Mercruiser Power problem!

    Well, tune up, fuel delivery, compression, are the first things that come to mind Have you inspected anything aside from runability?
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    Help understanding vacuum test

    15 to me indicates a sound engine. As long as there is no variation of more than 1 inch and it returns to 15 after a throttle open/closed fairly quickly I'd say you're set. Of course the ultimate idle vacuum is approx 17 with little to no variation but I would have no hesitation to run full...
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    Mercruiser 5.7 ?

    Depends on crankshaft or prop horsepower. Horsepower is a great number, something most folks can relate to, however the number a boat operator should be interested is torque. That's what gets a boat up, out of the water and on step. Horsepower keeps the boat (planing hull) up and maneuverable...
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