Fried Stator.

[Tim Wagner]

Ive been all over this looking for an answer for what I think I did.
I have found educational stuff but not quite what Im looking for.
Here's my problem.
Ive fried my stator and I believe its my stupidity (lazyness) that did it.
My motor is an 89 85hp. (856X9E)
My boat only uses one battery. (its only a 27 series too cause Im too cheap to buy a 31 and spend the other 15 bucks.)
The battery was new in June 03. Yea I got my use out of it.
It lost its charge this year pretty quick at the beginning of the season and I knew I needed to replace it ............... but I didnt.
Everything runs off of it. CD player, Lowrance, VHF, Bilge Pumps,trim/tilt, lights (my MinnKota too but the 85 isnt running when this is in use)
Anyway, with a dead battery (or damn near it) and running around on the 85 with alot of the stuff mentioned above on, especially the tunes cranking. Can this create a load problem on the stator from the weak battery and fry it??
Could it also do anything to the laminations on the flywheel???

 

[tjello327]

Re: Fried Stator.

I do know that you must have a completly charged battery with a ignition system that Force uses or you can strain the stator. If you only have a no spark condition on one or two cylinders, identify which ones they are, then swap just the leads that come off of your stator and go to the terminal strip with the other good stator leads. See if the no spark condition moves with your swap. If so, then you know its the stator. As for the flywheel, I am not to sure if your low battery would cause a problem unless there was enough heat created on the magnets. I would prove out the stator issue, if there is a problem there, pull the flywheel and inspect the magnets then.
Good Luck!

 

[Tim Wagner]

Re: Fried Stator.

The problem is no spark.
I pulled the flywheel and found the burnt areas where the wires were potted into the coils on the stator core.
Resistance is open.
I guess the grn/wht wires are the battery charging half of the stator.
The brn/blu pair and brn/yel pair are for each CD pack.
Its impossible for me to see what exactly is burnt cause there is one of each clumped on opposite sides of the stator.
Anyway I look at it on any pair (grn/yel-grn/yel. brn/blu-brn/yel) they are open, no resistance.
One note is the brn/blu pair is shorted, same as the brn/yel pair.
Plus, my flywheel does have a hot spot on the inner core for the trigger.
Im just curious as to the cause.

 

[tjello327]

Re: Fried Stator.

I read that a low voltage in the battery is not a good thing for these type of ignitions. I had a brand new stator in my engine and it had the glue around the coils melted a little. The battery hook ups were not very good so i changed the battery and the hook ups.. I changed everything after I bought a complete system off of ebay and now have good spark and runs good.

 

[CharlieB]

Re: Fried Stator.

The charging system and the ignition system use totally separate coils on the stator.

An obvious burnt coil and no spark = time for a new stator.

Charging system load will NOT burn an ignition coil, it can take out a regulator or a charging system coil.

About the only time the charging system affects spark is when the rectifier/regulator goes bad. One of the test for a no spark condition is to disconnect the rectifier from the stator and retest for spark, if now spark replace the rectifier. This is NOT your problem since you have found melted coils on your stator.

Replace the stator with one from CDI Electonics, besides being a bit cheaper than OEM, I believe their quality to be far better.