Jump to content
SpaceCowboy

Help needed! 2005 ktm 250 smoker

Recommended Posts

2005 ktm 250 exc two stroke with no spark. The mechanic said it needs a cdi but they’re not available new so he sent me home and told me to go on eBay. So far, 2 separate cdis from eBay don’t work. I’m wondering if it’s a connector issue or something else. 
 

Does someone have a running 2005 ktm 250 that I can swap a cdi into to test mine? 
 

furthermore, I know some of you are better mechanics than I am. Anyone have time to help trouble shoot? I’ll pay fair market rates, plus beer if wanted

Share this post


Link to post
Share on other sites

I have a KTM 250 two stroke in the garage, I think it's a 2003.  We can see if it works for you.

Share this post


Link to post
Share on other sites

Always start with checking the ground connections. And on a bike with no key, that the Kill switch is clean and the contacts are open. Wiring that has rubbed or pinched can short to ground. Any fuses popped?

  It is just physics, not magic.  You will get it.  😎

  • Like 1

Share this post


Link to post
Share on other sites

CDI part # 546.39.031.800 

Share this post


Link to post
Share on other sites

Worst comes to worst...there are companies that can repair some CDI's. 

Share this post


Link to post
Share on other sites

Did you get this figured out?   I pushed the bike out, it fired up in two kicks.  Love a 250 2 stroke!

  • Like 1

Share this post


Link to post
Share on other sites

KISS keep it simple- check all grounds, check kill ground- disconnect kill system, verify spark wire, verify spark cap, verify plug, verify stator. check ground plane engine to chassis as well. etc etc

Share this post


Link to post
Share on other sites

This could turn into a  Good class .

Now I would enjoy someone explaining how to check stator and voltage regulator operation.

         😎

Share this post


Link to post
Share on other sites

Looks like he fixed it and is out roosting. 🤘 😀 🤘

 

I do have a power probe if you or anyone wants to borrow it. Makes checking grounds/circuits/components so incredibly easy. It's most convenient when the bike/vehicle has a battery but you can power it externally as well.
https://www.powerprobe.com/na/en/product-list/content/308EbfcE6f63

 

  • Like 1

Share this post


Link to post
Share on other sites

I have been eyeballing those power probes for quite a while myself, found one at a pawn shop and picked it up.  Yes...an amazing troubleshooting tool.

Share this post


Link to post
Share on other sites
2 hours ago, bfar33 said:

Looks like he fixed it and is out roosting. 🤘 😀 🤘

 

I do have a power probe if you or anyone wants to borrow it. Makes checking grounds/circuits/components so incredibly easy. It's most convenient when the bike/vehicle has a battery but you can power it externally as well.
https://www.powerprobe.com/na/en/product-list/content/308EbfcE6f63

 

Is that PP3 the one to get? I had a bad ground on my van a few years back. The shop found it immediately and it was a quick fix. Did they use this kind of tool?

Share this post


Link to post
Share on other sites
25 minutes ago, Goofy Footer said:

Is that PP3 the one to get? I had a bad ground on my van a few years back. The shop found it immediately and it was a quick fix. Did they use this kind of tool?

Any of them are fine if you aren’t running a shop or something.  There are cheap Amazon specials that will get it done.  

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

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

×

Important Information