22 TC250 for returning racer

N919Mx
Profile picture for user N919Mx
Posts
5
Joined
1/26/2022
Location
Houston, TX, USA
N919Mx
Hey guys, I'm 31 getting back into the sport after a 10 year break. I just got a 22 TC250 and was wondering if anyone had the time to share some wisdom on bike setup and things to look out for.

I previously raced at an intermediate/expert level I'm 6' 185 and will be riding back into shape. I will be a novice when it comes to bike tech and setup but very eager to learn the ropes. Top questions are intital jetting, suspension and chassis tips, I live in Texas. Thank you in advance.
2
|
romain524
Profile picture for user romain524
Posts
757
Joined
1/14/2015
Location
Newport Coast, CA, USA
romain524 1/26/2022 7:29pm
1/26/2022 7:29pm
You can look at the KTM jetting thread on hereX Lots of great infos for you!
And congratulations on returning into the sport! I think that bike will be perfect for you. You can make it a little more mellow with the power valve adjustment if you want to.
1
suspensionguy 1/26/2022 9:57pm
1/26/2022 9:57pm Edited Date/Time 1/26/2022 9:58pm
That’s easy....

Jetting thread, spring conversion and rear spring for your weight(stock too light for most). Flywheel weight if you want more traction. Go rip.
hylo
Profile picture for user hylo
Posts
180
Joined
2/24/2015
Location
NO
hylo 1/27/2022 3:21am
1/27/2022 3:21am
Take your time looking at AJs jetting thread. Its worth its virtual weight in gold.

Also try different settings on the power valve to tune it to how you like it. You can get it very mellow and very aggressive.
If you are sticking with the original forks, take your time to play around with air pressure and the clickers. You can find a good setting in there. Same with the shock.

Most importantly have fun!
2

The Shop

See All »
N919Mx
Profile picture for user N919Mx
Posts
5
Joined
1/26/2022
Location
Houston, TX, USA
N919Mx 1/27/2022 7:01am
1/27/2022 7:01am
suspensionguy wrote:
That’s easy....

Jetting thread, spring conversion and rear spring for your weight(stock too light for most). Flywheel weight if you want more traction. Go rip.
Is the spring conversion highly recommended? Last air fork I rode was a 12-13 kawi 450. Have they improved the tech or is spring better feel on a 2 stroke?
N919Mx
Profile picture for user N919Mx
Posts
5
Joined
1/26/2022
Location
Houston, TX, USA
N919Mx 1/27/2022 7:59am
1/27/2022 7:59am
AJ565 wrote:
Where in Texas?

The jetting thread. https://www.vitalmx.com/forums/Tech-Help-Race-Shop,42/KTM-HUS-125-150-2…
N919Mx wrote:
Houston area. Thanks for the jetting thread I will start there
AJ565 wrote:
Ok so 3 palms and rio. I’ve ridden 3p a lot and that jetting works very well there.
Yes I was wondering where that jetting would work best. Looks like your the guy to ask, thank you!
YZed250
Profile picture for user YZed250
Posts
1368
Joined
11/9/2014
Location
Costa Mesa, CA, USA
YZed250 1/27/2022 11:48am
1/27/2022 11:48am
Best to ride first before making too many mods. Bike is ready to rip after some basic jetting mods.
suspensionguy 1/27/2022 2:30pm
1/27/2022 2:30pm
suspensionguy wrote:
That’s easy....

Jetting thread, spring conversion and rear spring for your weight(stock too light for most). Flywheel weight if you want more traction. Go rip.
N919Mx wrote:
Is the spring conversion highly recommended? Last air fork I rode was a 12-13 kawi 450. Have they improved the tech or is spring better feel...
Is the spring conversion highly recommended? Last air fork I rode was a 12-13 kawi 450. Have they improved the tech or is spring better feel on a 2 stroke?
IMO yes. The air ramps up quickly, springs provide and more linear and consistent spring.

We ride a lot of off-road and can see an increase of 2-4psi on a ride and that is roughly like going up 1 to 1.5 spring rates.

The conversion is fairly cheap, easy to install and never varies.

With that being said some have no complaints with the air but they drive me crazy. Both my SX’s are converted to spring.

IMO the 17+ ktm 250 two strokes are the best 250 smokers ever made.
pcm_918
Profile picture for user pcm_918
Posts
44
Joined
6/5/2018
Location
Elgin, MN, USA
pcm_918 1/31/2022 5:24am
1/31/2022 5:24am
I just picked up a 22 250sx. This is my 10th Ktm and I can say the newest air forks are a good improvement. The new bike is much more plush and the air is much more linear. All my previous Aer bikes were converted to spring but this one I’m going to stick with the air for a while. Just make sure you check it after your first moto and don’t let the bike bake in the sun and the pressure stays pretty consistent. Jet per aj’s thread, get your squish correct and run good fuel. If you want more top end a pc pipe and 304 silencer work well. I am about the same size as you at 5’10” 190. Racing A class.
1
Mx451
Profile picture for user Mx451
Posts
214
Joined
6/15/2018
Location
Bozeman, MT, USA
Mx451 2/5/2022 5:57am
2/5/2022 5:57am
N919Mx wrote:
Hey guys, I'm 31 getting back into the sport after a 10 year break. I just got a 22 TC250 and was wondering if anyone had...
Hey guys, I'm 31 getting back into the sport after a 10 year break. I just got a 22 TC250 and was wondering if anyone had the time to share some wisdom on bike setup and things to look out for.

I previously raced at an intermediate/expert level I'm 6' 185 and will be riding back into shape. I will be a novice when it comes to bike tech and setup but very eager to learn the ropes. Top questions are intital jetting, suspension and chassis tips, I live in Texas. Thank you in advance.
22 TC250 owner here. Vet A, 185lbs, 5'11" so we are apples to apples. First off you'll need to check the torque on the clamp and axle pinch bolts. Mine were either over torqued or so loose there were threads showing. The spokes on the rear wheel are always loose. I did a JD jet kit with some minor tweaking it was really good. The fork rebound is really sensitive to clicker changes. I ended up back on stock clicks. I run 155 psi and that seems to work well. I switched the bars to yz high but thats my preference. Rear shock youll need to go up one spring rate. The vented side cover is noticeably better for throttle response. Stock gearing works well for me. Im at 30 hours and so far so good. Thats all i can think of off the top of my head.

Post a reply to: 22 TC250 for returning racer