1972 50hp shifter diagram please or help

[jaydsl]

hi all new here but i just aquired a boat with a 50hp evinrude with electric shift (push button) and i have the motor running fine but no reverse i see a gray wire that is loose and i was wondering if that was reverse and where does it go ? i like this motor but the only thing that scares me from it is the electric shift , don't want to be on a fishing trip and it fail on me , should i be worried or is it just me ? <br /><br /><br />thanks <br />jay

 

[phatmanmike]

Re: 1972 50hp shifter diagram please or help

you should not be worried........<br />and you need a manual

 

[OBJ]

Re: 1972 50hp shifter diagram please or help

Jay.....the gray wire is a tach lead. It provides the signal to a tachometer.<br /><br />If you look on the starboard side of the engine, you should see two wires, a green and a blue wire which seem to disappear into the engine. These two wires provide the voltage to the shift solenoids. Here's what happens....<br /><br />Blue and Green wire going to lower unit. Blue is reverse and green is forward.<br /><br />No power to either = forward.<br /><br />Power (12V's) to the green = neutral<br /><br />Power (12v's) to both = reverse.<br /><br />Mike is right, you need a manual. Also, remember to use gear lube made for electric shift lower units, like Premium Blend from Bomby.<br /><br />Good Luck!

 

[jaydsl]

Re: 1972 50hp shifter diagram please or help

thanks guys will do with the manual they grey wire is by the ignition switch on the controls i will get it all sorted out before i head to the water the last thing i need is a stupid mistake on the water <br /><br /><br />thanks <br />jay

 

[phatmanmike]

Re: 1972 50hp shifter diagram please or help

jay, what type of steering do you have on that thing. email me

 

[ddaigle]

Re: 1972 50hp shifter diagram please or help

Jay, dont sweat it so much, that lower unit is designed to stay in forward if it messes up so you can still get home.

 

[phatmanmike]

Re: 1972 50hp shifter diagram please or help

yes, to concur with ddaigle... if you have a voltage failure problem and you are forced to rope start your engine, your lower unit will automatically be in forward gear. with no voltage going to either shift solenoid, it automatically goes into forward. it requires 12volts to shift to either nuetral or reverse.<br /><br />note: if you DO have to rope start it because of voltage failure, disconect the two wires going into the lower unit so the engine doesnt think its in nuetral or forqward and to bypass the nuetral safety switch