Running the motor

[JeffSmith]

My ignorance is going to shine again! I have a 70hp Johnson (1978), that I just bought. I would like to get it running before I try to trade it for a 50hp. I know that I need to add gear oil to it since the previous owner drained it. I am also aware of it's need for water...taken care of...it came with a contraption that is threaded for a garden hose to go on it. Now comes the problems. I have no controls, so there is no sense putting the motor on my boat to start it. How can I wire it up to get it running? Am I able to just hook the battery up to the starter and jump it? I'm sure the answer is no, but...I have no idea what to do here!!

 

[5150abf]

Re: Running the motor

Never feel bad about asking a question.

You actually can start the motor with no controls but there are things you need to do first, I am pretty sure you need to diconnect the rectifier.

I saw a post on here not long ago but can't remember, hang out and someone with more knowledge will be along but yes you can do start it.

 

[tashasdaddy]

Re: Running the motor

#1 you need a really sturdy mount. lots of torque there. you connect battery cables ground to block, postive to top post on solenoid. mount the muffs on water intake, connect hose. now with a remote starter switch, auto parts store, connect 1 wire of the switch to the top battery post on the solenoid, the other wire to the top small post, turn water on, squeeze switch, motor should turn over. CAUTION: there are only three ways to stop the motor, disconnect fuel line, choke the motor, or remove all plug wires. DO NOT rev the motor higher than 1500 rpms. it can cause a run away motor that cannot be stopped, other than disconnecting fuel source, but in the mean time, may throw a rod, etc.

 

[JeffSmith]

Re: Running the motor

Thank you very much! I appreciate the help.

 

[F_R]

Re: Running the motor

You must have secure battery cable connections as tashasdaddy just suggested. NOT clip-on jumper cables. Poor or loose connectios there will destroy the rectifier. An alternative is just disconnect the yellow wires from the rectifier.