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    1976 Evinrude 70 HP need help

    OK, I've had this motor for about 7 years and it ran well for the first 5 although it has always been a bit temperamental on cold starts. The troubles started when I lost a coil a couple of years ago. I replaced it with the proper Sierra replacement but have been plagued with hard starting ever...
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    Titling trailer in MO with no existing title

    OK I live in Missouri and I bought a 31 year old boat, motor & trailer in Illinois through a Boat Angel charity auction. When I received the documents in the mail, it turned out that the donor was also a MO resident. The boat did have an Illinois title but the motor and trailer did not...
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    Chrysler 70 with one really clean plug...

    My dad has a 73' 70 horse with magna power ignition. It's a 3 cylinder with 3 carbs. When it runs right it runs strong but it doesn't always run right. For the longest time he has had problems with it running OK for awhile and then losing power. He finally decided to go through the carbs and...
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    How many poles?

    1973 70 hp evinrude. Want to hook up tach, how many poles is this motor?
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    Hard shifting 70

    Got a mid 70's 70 hp evinrude that runs perfect but shifts really hard into both forward and reverse. I've had a lot of experience with various J&E models from the 50's and 60's and every worn out clutch dog I've dealt with only shifted hard in one direction or the other but not both. Never...
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    Prop size

    I just picked up a 70 hp evinrude 2 stroke that I want to use on a 1991 20' sweetwater pontoon. The motor was originally on an old runabout so I am concerned that the prop may be wrong for my toon. I know how to calculate pitch change based on WOT RPM, but my boat does not have a tach so I'm...
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    70 HP rude...fair deal?

    What would be a fair price for a 1973 70 HP Evinrude model 70673D in very good to excellent condition? Engine is mechanically sound, electronics are good, no leaks, has not been overhauled or repainted. All three cylinders came in at 140-145 PSI on the compression test. Cold starts nearly...
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    Black plug

    I recently picked up a used pontoon boat without a motor. The previous owner had bought it just for the 25 hp Evinrude that was on it which he thought was a mid 80's model. He did leave the remote controls and wiring harness with the boat. Since used outboards seem to be found without...
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    What are the symptoms of a weak fuel pump?

    How do I tell if my fuel pump diaphragm needs to be replaced? Early 70's 55hp magneto ignition, single carb. If the pump is in good enough shape to start and idle smooth and run in the lower ranges fine but is not good enough for WOT running, how will it act? Would I expect it to just have...
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    No top end....why?

    I have a '67 chrysler 35 horse and I swapped the powerhead for an early 70's 55 horse. I got it running and it starts easy, idles well and runs like it should up to about 3/4 throttle. Once it gets to 3/4 throttle it's like hitting a brick wall, it dogs out bad and speed drops to 6 MPH. If I...
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    Piston travel question

    Was never that good at geometry so I have a silly question. Does a piston travel the same distance forward with every degree of crankshaft rotation or does it travel further towards the ends of the stroke than it does mid stroke?
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    Any interest in a static timing tool???

    Recently while working on my old Chrysler, I decided to build myself a static timing tool. Basically it is my own version of Chrysler part # T8938 which is impossible to find today. It made finding top dead center and the degree of advance a snap. I just wondered if any of you fellow shade...
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    Tower shaft length question

    OK, so I finally got a chance to lake test my boat after converting my Chrysler 35 to a 55. Once I figured out why it wouldn't start and corrected the problem, it starts and runs fine in a barrel (although it's idling a bit fast) . However at the lake things just aren't quite right. Power and...
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    Which tachometer?

    Now that my Chrysler 35 to 55 conversion is done and is running I want to add a tach. My motor is a '67 with flywheel magneto ignition. I assume I need a tach with only two leads but everything I'm finding online seems to be for much newer motors and have multiple leads or are for 4 strokes...
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    Is my compression too low?

    I swapped the powerhead on my old chrysler 35 with one from a 55 and have been having problems trying to get it running. See my other post for details http://forums.iboats.com/showthread.php?t=337805 So I've got spark, fuel delivery is not an issue and I believe it's timed and synchronized...
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    Chrysler 55 timing help

    I have a '67 Chrysler 55 hp with type 1 (flywheel magneto) ignition. Actually what I have is a '67 Sea King mod. VWB-19087A. It is a 35 hp but I swapped the powerhead with a '73ish 55 hp powerhead. Everything is identical (except for displacement, head and carb) and installed with no...
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