crankshaft position sensor 2014 250 xcf-w

[bradrh]

Second failure of the crankshaft position sensor.   This one at 70 hrs, 1st on at 40 hrs.  

It looks like on this forum oldktmrider69, lronald, and WFC have had the same issue.     Anybody else having repeats?  Anybody have a good solution?   The dealer talked to KTM and they said that they changed the case design for 2015 for this issue.    I don't have a clear story, but the oil is too hot on the CPS, so they added another oil window in the case.   They offered new cases but no labor.   

 

 

 

 

Edited October 20, 2017 by bradrh
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[SoSlow]

I had the same failure on my 2014 350XCFW at about 100 hrs. 

[bradrh]

SoSlow, How many hrs on it now?  Any fix other than replacing it?

[SoSlow]

I replaced it. I've now got 145 hrs and hasn't recurred. Fingers are crossed.

[WFC]

Mine happened at 114 hrs. 2014 350 xcfw

[bradrh]

Any ideas for a better solution than new cases?

[FamilyRider]

I just had the same failure.  I have over 300 hours, but the failure was still a shock.  Luckily, after riding 140 miles of mostly tough terrain, I was heading back to the truck and it failed about five miles miles out.  I was traveling 55 mph on pavement for about 25 miles, so maybe that caused the oil to overheat - if that is really the cause of the failure.  But I run the high temp diesel oil that Rekluse recommends, so this surprises me.

Is there a reasonable way to prevent this?  This would be a real bother if it occurred on one of my multi-day adventure rides.

[WFC]

Since mine was at 114 hrs ( 350 xcfw ) and install a new one. Is it the pick up or engine case ? If its the pick up, did they redesign the new ones we are buying to correct the problem ? Luckly mine was on the road so it was easy to tow but it was on a 5 day ride that was cut short.  Do we need to remove the cover and check every 40 hrs ?

[FamilyRider]

Are there any tricks to replacing the stator and sensor?  It looks like the stator has some kind of glue holding it to a mounting bracket.  Does the replacement stator come that way?  Or do I need to glue in the new one?  I haven't been able to find anything about the stator in the service manual.

[WFC]

your new stator should just bolt on

[speedboot]

you can use the pick up coil from a 2009 sxf 250. less expensif ,its the pick up coil alone ,and no stator with it. had the same with our 2014 sxf 250 , 

[mog]

Maybe have to replace on a set number of hours like 80 ?

[WFC]

If thats the fix, I would go back to a Japanese  bike. Is their a way to contact KTM and ask these questions and get a straight answer ?

[FamilyRider]

I talked with my mechanic about this failure.  He thinks KTM just got a batch of poor quality pick-up coils back in 2014.  I am going with that theory - just because it makes me feel better ?

[FamilyRider]

I think I found out why my pickup coil got destroyed...

I installed the new stator and pickup coil, and as I was tightening the bolts that hold the pickup coil, the column that holds the bolt cracked in half with very little effort.  I suspect it got damaged from vibration, and allowed the pickup coil to slip.

[bradrh]

On 4/19/2018 at 0:17 AM, mog said:

Maybe have to replace on a set number of hours like 80 ?

That was going to be my plan, only more often, maybe every oil change.   I sold the bike instead.

On 4/19/2018 at 6:57 AM, WFC said:

If thats the fix, I would go back to a Japanese  bike. Is their a way to contact KTM and ask these questions and get a straight answer ?

You should try to get an answer from them,  I tried but they didn't give me a straight answer.  I think I found a customer service number in their website someplace.  The second dealer I talked to (Apex in C Springs) was very helpful and they got the improved crankcase answer.    It seems plausible since the failures seem to be on 2014 models.   KTM seems to sell inadequately tested designs and let the consumer do the testing.