400 exc

Hello all ive just swaped from a drz to ktm 400 exc 2001 model and everyone i ride with keeps going on about there not reliable and blow up all the time.Is this true ?(none of them own a ktm by the way.Im thinking of taking it for a engine stripdown and rebuild just for peice of mind ,do you think it is worth it or am i wasting money ?.Other than changing oil and filters every 500 miles or so what else should be done .the bike has done around 3000 miles i think.Thanks matt.

It seems like people who talk about unreliable and expensive to fix KTMs don't own one, but are "experts" about KTM problems.

Change your cam gear to the late one - about $30. Might as well change cam bearings while you are in there. I put 1800 miles of hard core dirt riding on mine last season with no probems, just normal maintainance. I change my oil every 10 hours which is about 150 miles.

Just ride it and enjoy it, it's a great bike.


Dont take this the wrong way, but could you please put a bit more thought into your thread title?

Imagine the forum index page if all it consisted of was a list of threads entitled 400exc; 450sx; 525MXC etc :cry:

Dont take this the wrong way, but could you please put a bit more thought into your thread title?

Ditto. Too general and will likely be ignored. As for 400 reliability, my experience and that of my riding friends who own the 400 has been excellent. Mine is an 02 with nearly 5,000 thus far trouble free miles. Just keep up with regular maintenance and fix the known problems: cam gear especially. I've also had to replace the WP seals, cam bearings and side stand. Otherwise, the bike has been flawless. I am a huge XR fan and still own one so my reliability standards are high and I'd buy another KTM in a second.

thanks for the replies.

Create an account or sign in to comment

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

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By TheCurtster
      Hi all,
      Well, I’m finally putting my faithful 97 XR400 out to pasture, and have joined the KTM family with a brand new 500 exc.  if Honda would only make a lightweight 400 size dualsport bike, I would....   never mind, that’s a different thread.
      So here I am.  I don’t race, I’m getting old, and this will probably be my last dirt bike I own.  I’d like to keep it for 20 years like I did with my Honda.  I’ll try my best to keep up with the flood of maintenance (what’s the crank rebuild interval for a XR?  40,000 miles?). Anyways, looking for suggestions so I can enjoy this bike into my 70’s.  A skid plate looks to be needed, and some way to tuck the license plate up and still be legal are in my future.  Thoughts?
    • By Jay_112
      Hey all,
      My name is Jay and i'm new to the forum community but not new to the sport. However I have reached my limit with my expertise and am hoping some of you may be of some help. Without further ado...
        I've stuck to a track most my life, I.E. Motocross, arena cross and outdoor national style tracks. I've made the difficult decision to leave to tracks to the young guns and ride more single track and trail riding up in the mountains. So i started by selling me Factory SLM racing 2012 Yz450F, yes i cried when he drove off with her. But i looked to greener pastures with hopes to have a KTM 500exc, Beta 500rr-s or a Husqvarna FE501. However, almost a year later and I still don't have a shiny new dirt magnet in my shop. I'm in the final deliberations and have narrowed it between KTM and BETA, with me leaning towards the BETA. This is where you come in.
      I would like to know the following.
      Is the Beta service intervals as daunting as the KTM's?
      Is the cost of parts between the two noticeable? And are the just as readily available?
      Those that have a 2017 of either bike, How are they holding up? Can I expect this bike to hold up like a 1985 XR250 (An almost impossible feat)?
      What are any major concerns about either bike?
      and finally what made you choose one or the other?
      Thank you for your efforts and advice. I appreciate it.
    • By jaworskime
      I have had this issue happen twice,  my efi and low fuel light are coming on, the bike will idle but soon as you give it gas it will sputter and die. The lights aren't on until you roll the throttle back.  Any ideas? Also the electric start won't work. Have to kick the bike to start,  and the computer doesn't come on when you turn the key and flip the switch to start,. Assuming it's a wiring  issue or fuel pump issue,  any help would be appreciated. 
    • By motf
      quick, question - is it doable without removing the tank?
    • By KeyKeeper
      I noticed my shock spring almost touching my exhaust on 06 525exc.  I pushed on the spring with my hand and the swing arm moved over 1/8"! 
      I know that cant be right but looking at the schematic view of the bearing layout, wth holds the swing arm from moving side to side?  I see the bearings, sleeve, seals and some small cap type things that go on the end of the sleeves  (outer end) but what actually keep the swing arm from sliding side to side inside the bearings?  Looking at mine there appears to be some sort of spacer on the left side between the swing arm and frame beam but on the right, it just looks like the sleeve mates up to the frame?  Am I missing something on one side?  Got this bike in a trade.  So far the motor has been rebuilt at cannon racecraft in OKC, forks rebuilt, and its super clean and runs great other than it needed valve lash set.  So it seems odd that an important part like a swing arm spacer would be mia.  Any ideas?