Motor on its way out?

So, tonight I was running my 3rd qualifier in my Losi SCTE with a 1410kv and MMP geared at 15/40 running a 2s High Velocity 60c 6000mah (brand new) and around the 3 minute mark, the truck just felt like it had no balls, so I pulled it off.
Tonight was a little cooler down here since I ran last, it normally temps around 145-155, tonight after practice, I put my finger on the motor and it was barely warm, held it for about 5-6 seconds, so I didnt bother pulling the temp gun out.

Nothing changed from the previous 10 times or so that i've ran the truck at this same track. I looked it over, nothing binding, I plugged the battery in and gave it a full rev, sounded like all was well.
I went out to start the main, did about 2 warm up laps, everything was fine, tone sounded, took off in 2nd... then on a big double that I easily clear, it came up short... went down the straightaway, and it was obviously slower, I pulled off, checked my throttle EPA, it was maxed out, went out, made another lap, and it was noticeably slower than the previous.
So I parked it, came home and plugged it in to the Castle Link, just for $#its n giggles I did a motor kv test...

Take a look... Nevermind, I cant upload a bmp. file

7749 seems a little off, seeing as how the last time I remember doing one it was right around 37-3800kv's.
The motor didnt seem to be hot when I pulled it off the track, I put my finger on it, it was warm for no more than I had ran it, but not "damn thats hot"

Im wondering if this motor is on its way out, or if its something else...
I've never had a lick of trouble from this setup, been running it since April or May, had to replace the MMP once, thats it.
What do you guys think?

[coolhandcountry]

Is you esc thermaling for the cut off?

No,
at least I dont believe so... the fan never came on...and it is functional, as it comes on when I turn the esc on.
I just went out about an hour ago and ran it hard through the grass and up and down the street, hard starts and stops...everything was fine, no issues.
Only thing I can think of, is it was really humid last night, to the point where there was condensation on the inside of the truck bodies, on my tx screen, everywhere.
Wonder if that had something to do with it.

[Overdriven]

Try checking your motor bearings, only thing I can think of that would cause a difference in readings during a Kv check.

[coolhandcountry]

Does the motor still feel like has good magnet strength in rotor?

[scarletboa]

as far as the high kv rating goes, u have to remember that that motor is a 4pole. you have to divide the rating by 2. the rating is actually 3875kv.

it sounds to me like your battery might be on it's way out and not the motor. i noticed a similar issue with my slash 4x4, but after changing to a newer battery, it was fine. that same battery had no issues in my other 1/10 trucks, but the slash (or any 4x4 sct) with the 1410 motor draws a ton of current.

Update...

So I ordered a new 5mm shaft rotor for my motor, and a buddy gave me a Tekin SC4X 5.5 to try.
During the week, I tore the car down and cleaned it all up, replaced the diff fluids ( it had been about 2 months since the last diff servicing) and installed the Tekin and took it to the track for testing, ran a whole 6000mah battery through it, and everything was great.
Swapped the Castle in it, made about 3 laps and it was slowing down again...only this time I could actually hear the truck, since I was the only one on the track, and it sounded like I had a really loose slipper...wait a minute, this truck doesnt have a slipper!
I took the body off and could see the fronts ballooning on the straight away, but the rears were just along for the ride, picked it up and spun the rear tire and it made almost 2 revolutions before the other one started spinning.
I was like, WTF? I just refilled the diffs...guess I should have pulled the gears out and looked at them, the Losi Diff Gremlin struck again...
Here I am, 30 mins before the 1st qualifier and I got my rear clip off, and the diff out, luckily I already had a brand new diff cup, already sanded and insert glued in, as well as some new diff gears, put it all together and went out and TQ'd, set fastest lap and won.
Now the Castle has a spare rotor!!!

[coolhandcountry]

That is good to hear you figured out issues.