HOW TO: 2 stroke bottom end rebuild - KTM 125 SX

How to rebuild bottom end on 2 stroke dirt bike KTM 125 SX. This is a tutorial on how to rebuild bottom end on a majority of 2 stroke dirt bikes, we are working with Wiseco Garage Buddy kit that comes with everything you need for a complete 2 stroke engine rebuild.
Top end rebuild video: • HOW TO: 2 Stroke Top E...
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how to rebuild 2 stroke bottom end KTM 125sx dirt bike

[@jesseheidenthal1209]

Wish you would have shown disassembly and replacing the bearings that the gears in the tranny ride on. Not a lot of videos on these engines surprisingly

[@skyrider6772]

Diki za super video, akurat robim rebuild na SX 150, pomohlo. Thank you so much for this video, helped a lot.

[@grantcoop]

killer video as always!

[@dirtniron]

thanks Grant!

[@jesseverwoert9769]

You have to soak te clutch plates in oil a couple hours before you put them in.

[@Joshua3131cc]

I liked the video! As I'm doing the same one i really with you could have said or shown the torque spec.

[@giacomopanizzolo]

NO WAY, I just also made a KTM sx 125 full rebuild video on my youtube channel! Nice video, maybe one of firts sx 125 rebuild tutorials!

[@dirtniron]

cool man, those little engines are super fun!

[@bikelifewithalex120]

Working on a KDX 200. Havent rebuild a 2 smoker since I was 14. How long does one heat case for and at what temp? They say 250 deg x 30min. My bearings did not drop in that smooth as yours had to tap them half way in.

[@noobspawnersstreams4102]

the amount of times i got to say in my head (thats what she said) was legendary

[@BradBrother]

How do you disassemble? Cant seem to find a video showing how to get those bearings out!

[@ryhu5642]

Hydraulic press but it’s not a special tool apparently…..

[@BradBrother]

@@ryhu5642 I got a bearing removal tool. I'm sure you could do it many different ways but heating up the case makes getting them out 100x easier. I used a heat gun but I probably could have put the whole case in the oven haha

[@user-ln9cz5hr3k]

That clutch vise grippy tool came in handy, i bet a leather belt would grab it ok 10:00

[@cindylebail3011]

Ça serait mieux de ne pas inverser les 2 roulements vilo, non?

[@lalmuankimamuana8129]

First pin

[@ThrottleTherapy152]

Title says no special tools and the first clip shows the use of a hydraulic press…

[@dirtniron]

you got me, but I meant crank pullers, etc.. you can drive the seals in with the hammer and a set of sockets..

[@onenessseeker5683]

That's what I thought lol

[@petarpants]

Special tools in this instance would generally indicate a manufacturer specific tool - ie a tool that is made only for the purpose of rebuilding the specific engine being worked on. A hydraulic press, while not a household item, is not a special tool since it can be used across many applications.

[@user-ln9cz5hr3k]

The flywheel puller is a must and a clutch basket tool is way better than a crowbar or a screw driver . An old clutch plate welded to an old screw driver is okay

[@bikelifewithalex120]

They come standard with all garage types. Must own one though

[@juanjosemunozgarcia1276]

Suzuki rm Is the Best mate

[@TheHypnotstCollector]

I left my bearings in the freezer for weeks. DON'T DO THAT!! My freezer was cycling warm, caused moisture condensation. And RUST. I didn't know..... Engine lasted an hour. Bearing failure. And I use some really good "snake oil" that I have 35 years experience with. So, put bearings in freezer for a couple of hours. Very sad and expensive and time consuming. I even have videos posted on the entire rebuild of my 1999 KX125. And we bought a new fridge.....

[@onenessseeker5683]

you must be off ya rocker son :)

[@user-ln9cz5hr3k]

😂😂😂😂no special tools, just that bad ass floor press... Im using all thread and sockets, cuz im poor