1990 Evinrude..no spark....stator?????

Hi Forum,

I have twin 1990 140 rudes. The starboard engine has no spark. I have swapped over switches, senors, coils, checked all my wiring several times and swapped over the power packs. I have a factory manual but just could not figure it out. I brought my boat to a rude dealer near by. He said that the stator was bad and it will cost $500 to repair. I agreed, then I got another call that the power pack was bad. It was working on the other motor just a couple days before.

Now I sit and wonder, what are the odds of both components going bad on a 18 year old motor at the same time. Starting to smell bad, I think I am getting ripped off.

My question is, will a stator on that engine cause a no spak condition? Is this part just for charging or does it also give the power pack an ignition reference signal. Does this engine have another ignition trigger device? I never had a complaint of dead batteries, why replace the stator.

I would have thought they would have diagnosed the so called bad power pack when they tested the system the first time? Any feed back would be great.

Thanks
Blacktuna

Re: 1990 Evinrude..no spark....stator?????

It is possible for a power pack to take out a stator or a stator to take out a power pack. Your stator acts as a trigger for the power pack and also generates a charge current, it also sends a rpm signal to the tach. The majority of the time when one side of the engine has no spark it is the power pack. There are tests for the coils and the stator, but not the pack. In your case with no spark at all it could be both out. They could have tested and found the stator bad, replaced it and then identified the bad pack. I noticed that you said you swapped packs between motors does the other motor start? I hope this helps.

4 year Evinrude Certified Tech

Re: 1990 Evinrude..no spark....stator?????

Thanks for the reply,

I swapped packs two days before it went to the shop. I have not swapped them or have they swapped them while at their shop. They used a pack from a 6 cly just to see if it would fire, which it did.

If the stator triggers the pack somehow I can see that it would be hard to diagnose a bad pack. I thought the stator and ignition trigger were seperate components.
My real question is, if a ignition trigger is available on that motor or not?

Blacktuna

Re: 1990 Evinrude..no spark....stator?????

There is ALOT of things that would cause a no start. Stator and em is just a couple. Both are easy to check with a few special tools. Sad part alot of boat shops just take it for granite units are bad. Having a good monkey to work on your toys helps save a bunch!

Re: 1990 Evinrude..no spark....stator?????

The stator has two sets of coils. The charging coils are separate from the ignition coils. You can have ignition problems separate from battery charging issues. To make sure it is not the key switch or wiring harness, swap the plugin control box harnesses at the engine. Of the parts you swapped, did that include the timer base? You have a unique opportunity to analyze the problem since you have two identical engines and can swap parts one part at a time.

Re: 1990 Evinrude..no spark....stator?????

did you solve the problem?

Re: 1990 Evinrude..no spark....stator?????

STOP swapping parts.You now have two motors that don't run,Invest your money in a (FACTORY SERVICE MANUEL)and a volt-ohm meter!!!!