new motor

[jason176]

I just purchased a 1961 project boat with a 1961 40hp evinrude on it. I obtained the boat with trailer and motor for a good price and the motor allegedly runs after the wiring is finished. After flipping through a clymer manual I realized that I may need some other parts that weren't included with the boat. The throttle is a aftermarket lever and I don't have the diode for the shifting of the motor. Actually all I have is the motor. I am beginning to worry that I won't be able to make the motor work without some of these other parts. I am looking at the schematic in the clymer and it is confusing, the wires all go to a box in the center of the schematic and I am thinking that this is just a wiring harness. I am very experienced with electronics and electricity in general so I am comfortable with the project but given the age of the motor I am worried about whether or not I will need or be able to get some of the items that I didn't recieve. Long story short, am I wasting my time and is there somebody who is experienced enough with this motor to give me a little advice. Thanks in advance.

 

[R.Johnson]

Re: new motor

If the engine is electric shift, it would also have a generator, along with a junction box for the voltage regulator, and engine harness. You also need the 3 button shift switch. Do you have these parts?

 

[CATransplant]

Re: new motor

I'd think that you'd want to check this outboard to see how it runs before getting started with all the wiring and other business. You can do that.<br /><br />This outboard will start without any of the stuff you don't have. To turn it over, you can jump directly to the terminal on the starter, with the negative wire connected to the ground strap on the engine.<br /><br />You'll want the motor in a barrel or trashcan with water a couple of inches above the water intake screen on the side of the lower unit.<br /><br />Start by pulling the spark plugs and checking compression. If it's over about 85 and the same or less than 10% different for both cylinders, that's good.<br /><br />While the plugs are out, you can check for spark. To start with, just put the plugs in the wire's caps, then position them so they ground on the engine block. Crank the engine. You should have spark on both plugs.<br /><br />If you do, reinstall them. Using fresh fuel and oil mix (24:1) hook up the fuel line to the engine, move the trottle to the Start position, close the choke, then pump up the fuel bulb until it is firm and give it a try. If it starts...great.<br /><br />If not, try spraying a little fuel into the carburetor throat with the choke open. Try again. It should fire.<br /><br />Let us know how these tests go. Then we can get on with helping you on the other stuff.

 

[jason176]

Re: new motor

Thanks, I will do that this weekend. The guy I bought the boat from said it runs good. He somehow had it wired to use it but took it apart to redo it and summer came and he decided he didn't want to be bothered with it anymore. I think I need a different repair manual the book I have doesn't have many pictures in it and it covers alot of motors so it is a pain to look up info on my specific motor, I was looking at the schematics for the motor and some of the colors don't appear to match with the book. Also, when I jumper the battery to the starter will the motor continue to run or will it just turn over. I am worried that if it starts I won't know how to shut it off. And unfortunately I don't have any other parts for the motor. Just checked model number and its actually a 1962 motor.

 

[jason176]

Re: new motor

The motor has 92 psi on top cylinder and 90 psi on the bottom. After I checked for compression I reinstalled the plug and cranked her over just for the heck of it and it started right up. But the water outlet hole wasn't shooting much water I am unsure if this was because the motor was in gear and the water was very rough or if it needs a new water pump. So now that we have a rough idea on the condition of the motor I would like to finish wiring the motor and then move on to the water pump. The book I have is hardly any help at all so I am checking out a seloc book at barnes and noble. I am not interested in making this thing stock so all I want to be able to do is shift gears with a switch and charge my battery while driving. I believe that there is a voltage regulator that is required for the generator and also I believe that I will need those diodes for the gear shift. Is there anything else that I may need. I read in the book that marine and regular starter selenoids are different and using a automotive type may damage components. I would like to verify that I have a correct selenoid so does anybody know how to tell. Sorry for the long post but I want to be sure that all the bases are covered. Any and all help is appreciated as the wiring diagrams are useless.

 

[jason176]

Re: new motor

anybody

 

[jason176]

Re: new motor

Bump