Jump to content

Recommended Posts

So im in the market for a new bike. I ride a 2001 cr 250 r and it rips. No mechanical issues, I could use a fork rebuild but is a solid bike. Ive been wanting a 450 for awhile, I had a honda 250 4stroke previous to this honda. So to step up I decided to get a 250 2stroke. Now that im comfortable with the snappy power delivery im in the market for more low end and more top end which leaves me wanting a 450 4 stroke. 

 So I put the word out about wating to possibly straight across swap for a 450. I came across a guy with a 04 ktm 450 sx that runs well not perfect. It needs tlc for sure, the gaskets were leaky first off, it was a pain to start. I couldnt get it started, my crf 250 was a little tempermental occasionally but would always start after a couple kicks with out the hot start or decompression. I couldnt for the life of me get the 450 to even fire. Then the older man would hold the decomp. Slow kick it a few times and get it going. Sounded good i noticed him adjusting the idle.

I rode it on pavement it pulled hard but didnt snap the wheel up, is that normal for a 450? Im sure if i were to play with it a little i could figure out the power band and get it to power up but i was expecting it to be pulling the wheel up without trying as i was shifting thru the gears.

Im sure its been apart a few times it was supposedly rebuilt. Then sold to the guy i was talking to who swapped out the rekluse 4 spd with a stock 6 speed.

I guess my question is, trading a well maintained '01 2 stroke 250 for a less well maintained '04 450 sx that is mostlikely going to need rebuilt a good move? Im wanting a 450 and i only have 1300$ in my cr so getting a 04 ktm for 1300$ even if i have to spend $700 and have 2000$ in a good 450 ktm thats not bad. And i dont think i could find a better 450 for 1300$ 

The cons of the ktm is just leaky gaskets which from my research is semi common, someone spray painted the case covers on both sides and it looks clapped, and it was tempermental to start so it will need a valve job and if im replacing gaskets might as well do a full rebuild and get everything freshend up. Plastics didnt have any flaws or stitches. It wasnt dogged out just spray painted and wrenched on. (You could look at the nuts and bolts and gaskets and tell it had been worked on. Which is a flag but it was running 'pretty good'  not perfect)

So im basically getting into a project. Which I dont mind just wondering "if it runs is it easier to rebuild than if it dosent run"?  Or is it more easily acheivable?

So any 04 ktm 450 sx rebuild, valve, timing tips please. Anyone thats went from a 250 2stroke to 450 4 stroke? Or recently rebuilt a 04 450sx. Im excited and anxious, I know i will love the power delivery and low torque and top speed which im more comfortable with compared to my cr. And im ready for it. Just wanting to learn as much as i can about 04 450 sx pros and cons. 

Sorry for blabbering on. I just want need and i am ready for a big thumper i loved my crf 250 but even after opening it up, jetting and upgrading exhaust i was still craving more power, torque, and speed. My cr 250 did the trick for this past season but im ready for more. Im looking forward to building a 450 especially a ktm. So if its not going to set me back a astronomical amount im ready to dive into #projectbigborethumper!

Thanks for reading! 




Share this post

Link to post
Share on other sites

I wouldn't take that trade.

KTM's of that era were nothing special. Everything else aside, you are trading a bike that was at the top of its class for a bike that was at the bottom.

Older 4 strokes are disposable. It's possible to spend more than the bike is worth to return it to good mechanical order.

  • Like 1

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with: