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    tuning a boat help

    I have a new boat and will be jumping into a complicated rigging /boat set up for the first time. my last boat the 50 hp was installed by the dealer. this boat will have a few firsts for me. the first power tilt/trim motor the first hydraulic jack plate the first center console and my first...
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    amperage draw from an Evinrude 90 hp??

    trying to size battery cable wire.... 1997 Evinrude 90 hp Ocean Pro I need to know how much amperage the starter might need to turn over this v4 when it is really cold out.... thanks bob
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    choosing battery cable size question

    I went through the search function and couldnt really find an answer. I am building my electrical system from scratch, I bought a tiller model boat and am doing some refurbishing and adding a center console. I have run hosing to carry my wiring, and made an order to a distributor that carrys...
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    electrical switch qustion

    I am wiring my boat up from scratch and will us Rocker switches for turning things on and off. they have standard ON-OFF switches...but they are rare...mostly the switches are combinations.. one is a Momentary on -off-on some are even listed as what they could be used for like a bilge pump...
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    more electrical fusing questions

    I have to wire my boat.. I got the center console and have to install it myself, it came with three switches and a small blade fuse terminal block. I was going to find a BREAKER panel to use as my on off switching and to be able to reset , with out trying to climb under the console and pull...
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    anti-siphon valves

    I had asked a few questions about my future fuel tanmks up in the front of my boat. One suggestion was to make sure I have anit-siphon valves on my fuel tanks. I see mention of them in several posts...so they seem to be something that should be used. I went shopping online for my stuff and...
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    stamping motor after rebuild..

    for you professional types...is it common to stamp the block for various reasons after a rebuild? I found a bunch of stamps and a few i am sure are from a rebuild others...not so sure. on the ede of the exhaust housing part of the block adjacent to the bores...opposite each cyliner is .040 my...
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    trying to figure my total amperage

    I am wiring my new boat...I bought it as a tiller version, but am adding a center console i bought at the same time from the factory. I am going to buy a breaker panel. the center console came with three switches fused through their fuse panel....Ill use those three for running lights an anchor...
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    dual portable gas tanks

    I just boat a big aluminum boat . I got the tiller version because I wanted an open floor plan( small decks) but i bought the console extra to install myself. the boat still has a deck up front. I want to keep the stern as light as possible , so i want to put the batteries under the center...
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    flycutting a head

    how much can you take off a head for a 1988 70 hp evinrude?? there is just a little pitting in between cylinders. plus there was some debris smashing into the the head by the piston after a recent rebuild... it seems pretty flat now.... I can cut it at work with not much set up...but i dont...
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    no need for oil under 1800 RPM???

    buddy at work has an 1987 johnson 140 hp. he says he read somewere along the line that OMC stated that it is ok to run the motor under 1800 rpm with out oil. he said in case you ran out of oil out away from the dock you could still run the motor back, if you kept the rpms under 1800.. says...
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    70 hp powerhead problems and questions

    decided since i had the power head off on this non stop refurbish of my 1988 70 evinrude...Id just pop the head ...worst that could happen is I got to replace the gasket...but it gives me a look and see! well the lower cyliner looked alike a bomb went off in it..shrapnel embedded in the...
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    removing exhaust cover and all then pieces underneath??

    1988 70 hp. I decided since i am doing so much work sandblasting and painting every pieces of this motor housing and lower unit before i put her back together. as well as replacing every seal and gasket..I figure I will take the head off the power head just to look around....since it is just...
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    removing flywheel V4

    I have a 1997 90 hp that has a tapping coming from under the flywheel. and i went and bought a book today and stopped by the mechanics to ask a few questions before i dive in. he says dont try and take it off, it is hard to do and that I 'll chew up my fingers trying to get it off. plus i need...
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    a chart to help start a prop choice???

    I got a new boat..20.5 foot Lowe Ultra Roughneck Mod V. 70 " at the chine...with a 12 degree dead rise. the hull weighs 790 lbs now..I bought a center console and a storage-helm seat to install myself..and i removed the rear bench seat.( i am repositioning the level flotation to the sides at...
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    knock knock knocking at the knock experts doors!

    fired up this 1997 evinrude 90hp ocean pro, I bought from a guy who was worried about getting stranded in LONG ISLAND SOUND, because of a slight knock he heard. He said last summer it was present when he bought the boat. He took the boat fishing at least 15 trips during the summer and fall and...
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    battery cable ground location on motor?

    I have a 1997 evinrude V4 90 hp ocean pro , I bought the motor and the guy gave me all the cables and wires except the battery cables... I am making them up , but I cant find a location that is easily recognizable as the place were the factory had the negative lead hooked up! I took the lower...
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    hydraulic jack plate questions

    I want to get one so i can motor( even if slowly) in very shallow water. They come in various set back dimensions. I have read that the farther the set back the higher you can raise the motor and still run. at what point do the negatives start to come into play??? is there a drawback to having...
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    removing the pivot for the tilt...

    so have this motor of mine torn apart all the way down to removing the tilt -trim unit and splitting the mount bracket...now I have the main body that houses the Pivot for the motor for turning and for the the motor tilting... the tstainless steel tube that runs through this part , that the...
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    60 degree or 90 degree V4?

    how would you know without trying to measure the angle of the cylinder to each other, if your motor is a 60 degree V4 or a 90 degree V4? I just picked u a 1997 90 hp OCEAN PRO evinrude...and looking online for info about the OSI ignition system I found prompts asking if the motor is a 60 or a...
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