IN-DEPTH KTM 250SXF TOP END REBUILD

[@Stone881]

Damn, I sure hope that you put more than 7.5 lbs of torque on those head bolts. Final spec is 36.8 lbs, so that is pretty damn critical.

[@toddradke3484]

I hope you torqued the head to more then 7.5 ft/lbs! That is only the first step. The small outside nut stays at 7.5 the 4 large M10 nuts get torqued to 22.1 ft/lbs and then up to 36.9 ft/lbs for the final torque.

[@tomdavis3331]

Was just about to comment the same thing... Must have only read the first torque setting, missed the 2nd and 3rd...

[@mxfreaks]

Yes I was thinking the same thing as well. Its annoying when ppl correct every little mistake in videos but this mistake could cause someone to basically start over and waste a whole day of wrenching. I wonder if the head gasket leaked? Otherwise a great video and appreciate it. My first KTM so wanted to see any differences. Only other thing I'd add is to always double check TDC from the timing mark. You made sure the piston was at the top of the stroke when put the head on but when putting the cams on it could have moved without you knowing. Probably not but I always double check that from the timing mark. I've had 4 strokes jump timing and the damage is catastrophic to the head, valves, cylinder and piston in alot of cases.

[@andycumston4431]

Love the manual link, thanks! Also great video man.

[@wilvenlegaspo9118]

Helps a lot. Hoping for the Bottom End on the next Video.

[@xerophinity]

Me seeing that keyboard slide at the enter password screen: 🤯

[@alekseiderzhavin3802]

Amazing dude! What a great video! Wow wow wow! Great

[@kimoalana426]

Good stuff!

[@fredreyes8345]

Awesome!

[@surfnj19]

Awesome Video

[@Bzemach]

Very good video dude appreciate the help

[@CHD2046]

Excellent video!!!

[@danblekeberg2470]

Thank you !

[@stevenmcallister2230]

I have ktm s xxxx 250cc 2012 it starts great but after 20sec ones it dies the fuel pump new good injectors good any ideas

[@damoncustodio6577]

book calls for lactate 5910 between the engine case and cylinder but I have seen multiple videos of people putting on no sealant in that spot. what do you think I should do?

[@kaleb6206]

Thankyou so much

[@drewb8128]

Did you do a Bottom End on the next Video?

[@mattdaugherty11]

Thanks man, big help!!

[@xxjsgamer2778]

I got a ktm 250 sxf 2006 and I timed it just like how u said and the manual book but when I kick it is hard to kick

[@seank404]

Check shims that was my problem, all good now

[@mikekerns3774]

I need help guys? I got a leak around my front sprocket so I ordered the countershaft o ring kit. I’m not a mechanic. I can do it myself or take it to shop? I have all the tools and I can do some stuff. Also I ordered a 14 tooth front sprocket. I like low power for wheelie’s so should i order a 12 or 13? Thanks!!

[@chasebrewer8110]

Where’s the link for the service manual?

[@MasePalmer]

Thanks for the tips and tricks. It sure is going to help out a ton when I replace the top end on my 2019 250xcf in a couple weeks. One question.. is it possible to do the top end with the motor still in the frame or should I just pull it out like you did?

[@jaimearaque7449]

I think that it's easier work with engine pull out. It's more comfortable for you.

[@axelboldrini4656]

I just did with the engine on the frame and no problem

[@MasePalmer]

@@axelboldrini4656 I did the same

[@taylorhessel6656]

Did you end up doing it with it in the frame?

[@MasePalmer]

@@taylorhessel6656 yes

[@jangoreo]

Did you gap the rings ??? Do not install the ring gap intentionally on a load axis - AKA the front or the back of the piston.

[@lukegonano3956]

Was thinking the same I’d gap it while it’s out

[@marjanmacek1500]

tnx

[@fright_nike09]

Hey I just bought an 06 ktm 250 sxf and it was seized up I got the engine free and couldn’t get it started so took the cam cover off and seen the timing was off them looked closer and the cam bridge that holds the actual cam down snapped… could that have been why it locked up as it was riding the person I bought it from said it locked up while riding I paid $500 so it’s not like I’m out a lot haha just don’t want to go into the head or anything further if it’s a simple fix any help would be very much appreciated

[@hyposez1129]

Anyone can answer but is the piston at top dead center when the engine is between the compression and power stroke so the piston will come up to compress and if it's at top it should spark but because no spark then it is at top dead center am i right?

[@eddiehearn9864]

I think he got confused with 7,5 lbs torque with the studs there’s 3 stages of torque settings on the cylinder nut

[@traviskeen6509]

Crows foot

[@alekseiderzhavin3802]

Do you rebuild engines on other people bikes! ?

[@talalgoodjeerashidgoodjed4686]

Hi do you have the link for the service manual?

[@BladeBarn]

Hello, So im installing a 270 kit on my 21 tomorrow, can I just head the head and cams intact and disconnect the cam chain instead somehow? bikes new and I dont need to check valves or do anything else just want to make swap of the cylinder and piston as easy as possible. thanks for your help!

[@farrelllaney9828]

It’s basically impossible to get the cam chain off without having to take the cams out unfortunately

[@erikf6669]

Hello nice video where did you other Parts from like the piston or the cams if you need it

[@jordonjayread9250]

I brought my parts of ebay done a full rebuild runs perfect watched the video as I brought it in pieces but runs great

[@jonfyfazan]

👏🏍👍👌🇳🇴

[@KingSerg117]

What year is this bike you worked on

[@farrelllaney9828]

2018

[@mxfreaks]

anything different for 2019?

[@martinkadlecek5593]

Hey! Nice Job! How many Hours on piston?

[@farrelllaney9828]

50

[@alekchil9437]

2015 ktm xcf250 238 hrs on top end lol

[@lecoureurdesbois86]

The dislikes are from liberals