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    which switch box?

    How do i tell which switch box to order? I have a 93 sea rayder, sport jet 90 hp. i have diagnosed down to the switch box and im unsure of which one to order.
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    Testing a switch box 93 sea rayder 90 hp sportjet

    Is there a way to test a switch box on a 90 hp sport jet? i have gone thru most of the other testing and am getting desired results. I am leaning towards the switch box but dont want to spend the money if its not neccesary. thanks
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    93 sport jet 90 no spark (i know, here we go again)

    I have a 93 sea rayder with the 90 hp sport jet merc motor. I have no spark. I read a ton of info on this forum. I unhooked the black/yellow wire and had spark. So i started putting things back together. I came back out the next day to just double check and now i have no spark. No matter if...
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    New to the "jet boat" life, have a few questions.

    I just recently was given a 96 sea rayder jet boat, i was told it would run with a little tune up and such, im not worried about that as i have gotten lots of old and new boats up and running from sitting for a while. This boat was winterized before it was stored. i was told by the owner a...
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    Ecotec swap

    Has anyone ever attempted swapping out a mercruiser engine for a Chevy ecotec engine? If so I'd like to pick your brain. Thank you
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    1967 sportsman 120?

    Looking at a boat in a guys yard that's been sitting for like 20 years. I've been looking online but I can't find a ton of information, other than the trailers are built heavy enough for the Titanic. Not sure if motor runs. Just wondering if it's worth picking up or if it should just be laid to...
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    3.7 mercruiser shift linkage.

    Is there a sticky somewhere for adjusting the shifting linkage on my mercruiser? If I start the boat and go in reverse it won't go back forward into neutral until I shut the motor off. And same with forward. So a buddy put a little pressure on the linkage and it shifted better. Just curious if...
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    85 470 runs the same on 3 cylinders as 4

    I was checking for spark and I pulled boot off #1. Cranked over and engine fired and ran. On 3 cylinders. No miss or rough idle. Put back together and it ran fine. Then later felt like no spark again so I pulled boot #1 to check for spark, same thing, started and ran fine on only 3 cylinders...
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    Is my mercruiser a aplha 1? How do I tell

    I just got a 1985 century with a mercruiser 3.7. I believe it's a alpha one. How do I find out for sure? I'd like to order a water impeller kit. Thanks
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    New boat, seeking info

    I just recently purchased a 1985 century polamino. It has the 4 cylinder mercruiser 170. What litre is this motor? I'm looking to diagnose a "no spark"
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    What year is my boat?

    I have a sportcraft gull wing. I was told when I bought it , that it was a 72 but I'm not so sure about that. There are some numbers on it 024 and 1667. Its a 15 1/2 ft tri hull with a open bow. Any help would be appreciated.
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    Stupid question of the day. 1 12 gallon or 2 6 gallons?

    So I've been having issues running out of gas. I bought a bundle of fuel tanks. One is a 12 gallon tank the other is a small 6 gallon. I already have a 6 gallon. So my question is would it be better to run the big 12 gallon or 2 6 gallons. Space is limited and I'm somewhat worried about too much...
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    what battery to use? done research need answers

    Hey guys I have a 63 evinrude 75 hp speedifour with out a alternator or stator. I am trying to figure out which battery to use. I have only used my lights once and run NO accessories. All its used for is cranking. Please help thanks
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    anyone have a 63 speedifour 75hp

    I have a 63 evinrude speedifour 75 HP. I have a question about drain holes. In the bottom how many are there and can someone provide pics? I think I have a crack
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    is my motor electric shift?

    I've got a 63 evinrude speedifour. I'm trying to tell if its a electric shift or manual. How do I tell? I start it and push the throttle forward it goes forward. I pull back and reverse. There is a lever on both sides of the motor
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    how much oil?

    I want to change my lower oil . I understand how to do it but how much do I need? Do I need a gallon or just a quart? Thanks
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    63 speedifour 75hp.. what oil

    Working on my 63 evinrude speedifour. What type of oil should I use on the lower end? Also how exactly does one go about regular maintenance as far as changing lower gear fluid?
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    63 speedifour 75 HP alternator???

    Did they make a alternator or a stator set up of some sort to recharge my battery while running? 1963 speedifour 75 HP. Magneto ignition
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    speedifour rpm gauge.

    1963 speedifour 75 HP. Which wire is used for the rpm gauge? Does anyone have a wiring schematic? Or tell me how to wire it up. Thanks
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    63 speedifour leaking something

    I am workin on my speedifour. And recently noticed a milky whitish colored oily substance coming out of the bottom of the motor somewhere . It smells kinda like fuel and its leaking somewhere front bottom of the motor . Any ideas?
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