Not getting spark

[atk82]

I have a '94 50hp evinrude im only getting spark from bottom spark plug nothing from top one. Would it hurt the motor if its been running like this. Do i need to replace the coil or something else to fix probablem? And would this cause it to run at 4500 rpms wot?

 

[Robj]

Re: Not getting spark

Yep it does hurt the motor to be running like that. But if you are able to get it to 4500 rpm, I doubt that you are running on one cylinder. I would swap coils and see if that makes a difference. You definitely don't want to run it on one cylinder.

Have a great day,

Rob

 

[Mas]

Re: Not getting spark

Maybe you've got a bad plug wire...and changing its position makes it worse??

MAS

 

[tashasdaddy]

Re: Not getting spark

don't run it like that, as said complete swap the coils, and see if the problem follows the coil, if so replace coil, if not start check grounds. then the powerpack. hopefully it is the coil.

 

[F_R]

Re: Not getting spark

I have a '94 50hp evinrude im only getting spark from bottom spark plug nothing from top one. Would it hurt the motor if its been running like this. Do i need to replace the coil or something else to fix probablem? And would this cause it to run at 4500 rpms wot?

The only way you could get it up to 4500 on one cylinder would be if you are running it out of the water or without a propeller. But you aren't doing that-------are you? Now THAT will certainly destroy the motor in a heartbeat!!!

 

[dieselcat]

Re: Not getting spark

I have a '94 50hp evinrude im only getting spark from bottom spark plug nothing from top one. Would it hurt the motor if its been running like this. Do i need to replace the coil or something else to fix probablem? And would this cause it to run at 4500 rpms wot?

This is a friend of mines motor,and i'm helping him work on it.tonite we are going to switch wires and see what that does.There is currently NGK plugs in the motor and i know they recamend champion plugs for the johnny/rudes can someone please tell me what champion plugs for this motor?

P.S Not hijacking this thread just trying to get info for him because he is at work.

 

[bankerjohn]

Re: Not getting spark

QL78YC (see note 3)

3. On ALL VRO/OMS equipped motors the "QL" supressor plug is recommended.

 

[dieselcat]

Re: Not getting spark

Even if the VRO is disabled?He is premixing 50:1.

 

[bankerjohn]

Re: Not getting spark

Even if the VRO is disabled?He is premixing 50:1.

Shouldn't matter!

 

[tashasdaddy]

Re: Not getting spark

when i disable VRO, i went to QL77JC4 gapped .030, got better performance.

 

[dieselcat]

Re: Not getting spark

when i disable VRO, i went to QL77JC4 gapped .030, got better performance.

On a 94 50 hp rude?

 

[tashasdaddy]

Re: Not getting spark

all the same basic motors as the 94 50 rude. 93 40hp 88 50 hp, 2004 50 hp. i have had a lot of these motors.

 

[atk82]

Re: Not getting spark

Thanks everyone for the help. I got new plug wire and still no spark. So i guess its the coil.