unknown electricle box

[wayne 15]

I own a 1970 115 evinrude. the motor loses spark after run for 15 or 20 minutes. I found a box that looks bad,it is cracked around where it is sealed together. the problem is i don't know what the box does. it is aprox. 2in by 3in pointed on each end.it is made out of aluminum and sealed with somthing that looks like black plastic. there are 5 wires coming out of it. 1black, 1brown,1yellow,1purple with black stripe,1yellow with black stripe. the box attaches to the back of the block with 2 bolts. it is located just above the pulse pack. could sombody please tell me what this box is what it does and where i can buy one.

 

[seahorse5]

Re: unknown electricle box

The "box" you described is the safety circuit for the electronic ignition. The alternator has to be putting out current (while the motor is cranking or running) then it internally switches 12 volts from the key switch to the power pack for ignition. It is designed to keep the motor from starting if someone turns the flywheel by hand if the key is on, or if the throttle (spark advance) is moved which could start the motor if a particular cylinder is at TDC.

 

[wayne 15]

Re: unknown electricle box

I noticed a crack where this box is sealed,whould this part make my motor shut down after running for aprox. 20 minutes? the motor has no spark on all 4 cylinders when it shuts down. if you let the motor sit for 15 or 20 minutes it will restart and run fine.

 

[Hooty]

Re: unknown electricle box

Repair Manual <br /><br />c/6<br /><br />Hooty

 

[wayne 15]

Re: unknown electricle box

I have a clymers repair manual but it doesn't go into great detail when it comes to troubleshooting.is there a better repair manual i can buy? and where?

 

[Solittle]

Re: unknown electricle box

http://www.theoutboardwizard.bizhosting.com/parts_service_and_owners_manuals.html