Sled is a 99 thundercat Part way through the seasone last year put a new RM Stator in it after the first one crapped out at almost 6,000 miles, Rode 800 miles to finish the year out. Started sled one a month all summer not a problem. First snow in December went to start sled and no fire. A month later RMstator sent another startor to me, sled lost its fire a month a go, been layed up and havent been able to get to it. Well the other day went out and tested the stator- guess what- 250 miles and another one down.
Whats goin on- can't find anything else wrong, all grounds are good and dialectric grease on all connections... I know stators for the big tripples are junk, but this is no fun any more. Looking for any input....

My experience with RM stator, the first one had the one ignition coil contact poke through the insulation and short to the ground plate after the first week. The second had the ground wire break after a week, but repaired it myself. The second one, then had a wire break off the ignition coil after a year. This is all due to workmanship. The 3rd stator isn't going in my sled, but I at least have it for a backup if I have a less than 100 mile trip planned for the following day.

I have an oem stator for this sled for sale in the for sale section if interested.

Aftermarket stators are NOT worth the hassle on big block cats.

I heard that it is because the Japanese use a dfferent diameter wire to wind the factory one...so these guys have to use either more or less of another diameter or something....

but it is your weekend away snowmobiling...it is up to you.

Like you said, the original stock one lasted 6000 miles...those aftermarket ones typically last 800 miles. I've seen it time and time again.

Has anyone had good luck with a aftermarket stator?? There is no reason why a rewound or new aftermarket shouldn't be as a new cat one. RM states that they use a higher quality wire than the original piece so that it will with stand the heat better. I installed one in my 99 T-cat and only have about 10 miles on it , so far so good, its a RM. Does anyone have miles on a Rm stator in a big block cat??

Been running a RM stator and no issues. Must better than I had with rewinds.

Normally stators fail with wires burning up. My issues were with solder joints breaking, which it looks like they've fixed by adding epoxy on newer ones, and with poor insulation. The windings are solid. It looks like RM uses a thicker wire on the lighting coil. With the RM stator I found the lighting coil didn't put out as much power, my headlight was dim, especially when applying the brake.

Dave, you are one of the fews that have had good luck with the RM stator(that I personally know of).
I know of 3 big triple stators that they did about 4 years ago that I resent to Stator Corp 3 years ago to have them redone that are still going strong.

Stator Corp is not perfect either, Most of you guy's know that I work at a snowmobile repair shop, I have had at least 50 stator's redone over the years, out of the one's that I had done, I have had 4 "come back's" 4 years ago and they were all EFI's. The reason was that the insulation on the windings was failing and shorting them out, That they fixed for free.
Since they found out the issue, I have not any trouble with the EFI's since.



I have one that I just got back last week from Stator Corp last week That I did for one of my motors for next season if your are interested.
Mike

I have an RM in my T-cat, only put about 500 miles on it. I notcied it seems to have output problems. If I have the warmers on and heated visor the high beam is dimmer thant low beam. As soon as I turn off a warmer it's fine. The only thing different about it is that stator, I had a Stator Corp in it before that is now in my 900. Anyone have that problem? I am going to call RM and tell them I want another. Not terribly impressed with the connector on it either.

If they are using heavier guage wire on the lighting coils it will have less output (fewer turns) I dont know why they would do this if they did as it is not the lighting coils that cause the problems. Im almost scared to head out on a trip with a RM stator after reading some of the posts on here. Maybe should buy a new one and keep the RM as a back up. I see no reason why they cant be wound as good as new, there is no reason.

Check your grounds and make sure they are good. Either you grounds are bad or the repaired coils are starting to short out to ground.
99% of the stator repairs are the high and low side of the ignition coils only, they have no effect on the lighting and voltage side of the stator.
All these repairs do is for the voltage to run the engine electronics.
The coils that get repaired are the two shiny new ones that you see in the picture. This one is a Batteryless EFI stator I just had redone.
See if you can see what ones were fixed???

I have had no luck w aftermarket stators.
First 2 "new " stators had no spark. I replaced CDI ,Coil packs , crank trigger and still no spark.The RM ones were checking out on the ohm meter but were duds.
I then got 2 "new " ones (one after the other) and minimal lighting output. I replaced voltage regulator and still little output.
I bit the bullet and bought a Cat OEM stator and problem solved.

Oh well at least I know my electronics are all new and should last at least another 8000 miles.

OEM is the only way to go.
Expensive for what they are but in my mind worth it.

You state you had a RM Stator,
I have had Stator Corp re-do a lot of them for me over the years, I have had no issue's with them on carbed sleds with the exception of the one's I stated for the EFI models.

I actually had 4 rm stators . First 2 no spark(what are the odds) and last 2 minimal lighting coil output.
I was very frustrated as I am sure they were as well.
I was refunded less shipping what I had paid them in the end and bought a new OEM Cat stator.
All was fine after that.

No more aftermarket for me.......................................

I rewound my own shit 3500 miles ago and its still running clean, obviously this isnt a job for anyone without electronics knowledge but i wasnt paying 780.00 for a stator

it is however very time consuming and requires the use of some chemicals to get the old stuff off.

maybe ill start rewinding stators as a side job if i get bored

DTM

also if youve went through multiple stators you might have an intermittent short somewhere in your system, shorting the coils causes very quick failure of the stator wiring.

Mike, the question is, does your wife know you're flopping snowmobile parts on her lace table cloth?

Yes she knows and didn't care to much, She did bitch pretty good when she found out I "hot tanked" my last engine in the dishwasher LOL

Table cloth?? that looks like his under britches, can't you tell by the size and how big they look???

Now you guys have me worried also. I have a new RM Stator sitting on my bench ready to go for next weekend and am concerned that the aftermarket is going to fail in the woods !

Great !

feelgood

I know the feeling , not sure what to say.....I have about 200 miles on mine and it has been fine so far. There is no reason why they shouldnt be as good as oem. However they dont seem to be.

Gee, what's so unreasonable about that. Seems like that's maximizing your investments.


hmn......I guess only those in the know would have that kind of information.



I've put 2 seasons on my RM stator. Completely satisfied.

I have had many problems with RM stators, from sleds to atv"s they seem to cause more problems than anything else.My 2 cents.