Jump to content
Sign in to follow this  

kx250f cdi rev box from ebay

Recommended Posts

so ive been seeing alot of aftermarket cdi boxes on ebay latley from these performace parts sellers...i saw one starting at only 90$ and no bids so i bought it..unfortunatly when i put it on my bike it doesnt even start, i put the stock back on and it starts up first kicki did this a few times switching back to stock and the new one but only the stock will work...BEWARE DONT BUY THEM ON EBAY

Share this post


Link to post
Share on other sites

The 2 best cdi units out there are the Vortex from MTRacing.com or Pro Circuits.

Share this post


Link to post
Share on other sites

i saw them but they never really sold so i never trusted it. but i did get a good deal on the carbon fiber case guard for a 1.25 i was the winner but it was worth alot more i just got lucky.

Share this post


Link to post
Share on other sites

The stock CDI box changed from 04 to 05. I bought a used ProCircuit box off of eBay that was for an 04 and it did not work on my 05. At the time I thought I was being scammed but then the seller called me and explained that he made a mistake when he claimed it should work on an 05. He fully refunded my money and then some to cover the return shipping. Turned out to be the father of an up and coming pro rider...

Share this post


Link to post
Share on other sites

Man I have had 2 pro-com engineering rev boxs and there new and Im having the same problem. I have to send the new one back and i got it today and my stock one starts on the first kick to. the aftermarket one doesent even fire up at all just thought i would comment on that to.

Share this post


Link to post
Share on other sites
what does after market innitions do?

not sure what it does for a 250F but for my CRF50 it gets rid of the rev limiters and shit, and allows much more power to get unleashed.

Share this post


Link to post
Share on other sites

well the JD ignition i run you can plug it in to the computer and change basically all the power of your motor and fine tune it, change the pick-up positioning, it also changes the ignition curve for more power everywhere

unlike crf50's our bikes acually need a rev limiter or our valves will be sh*t reall fast, thats why its not good to get the ones off ebay like i orginally posted 1 year ago ^^, all they do if lift the limiter which is a no no :ride:

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:

Sign in to follow this  

  • Similar Content

    • By Toms.abpg
      Just bought this bike and the pop on decel is horrible, looks like I’m gunna have to try a Tokyo mods remap. Anyone had success with this ?
    • By _Cloudy_
      Hi, I have just bought a kx250f, 2013 with a freshly rebuilt 2016 motor in it, this is my first time on these forums, anyways, I have also bought a lowering link to drop it 4 inches on the arse, I was wondering if anyone knows how much I should drop the forks? 
      I havent put the lowering link on yet. 
      Thanks.  
    • By Zach Miner
      Recently had issues with the original fcr carburator that was installed in my 2009 kx250f, tried jetting multiple time and different gas and the bike would only run with the choke ziptied out. Do I went ahead and purchased the lectron gen 2 4 stroke carburator kit, was kinda expensive and I was kind sceptical but after my first ride all I got to say is wow. The only adjustment I have done it set the idle, the bike runs amazing and feels as if there is more power than before. The kit came with a new throttle tube assembly and a g2 throttle tube with adjustable cams for throttle response. I highly recommend if you have a carburator on your four stroke and don't want to get a new dirtbike that is fuel injection then go the route of throwing out that junk fcr carburator and get a lectron gen 2 carburator for your old 4 stroke

    • By DirtbikeDon
      I own a 2012 Kx250F that I would like to make street legal if possible and I recently saw Rocky mountain I believe sells these battery packs that sit in the airbox for bikes without batteries that looks too good to be true and a headlight and turn signals like a conversion kit basically and I was curious as if anyone has had luck with those or if there junk it would be nice to make my bike street legal for short trips or just have lights for trail riding with friends that already do if possible any tips on converting it? 
    • By kylesmith_14
      The launch control only lights up when you first start up the bike when you try to use the launch control it doesnt light up at all ive tried 1st 2nd and neutral for 3+ seconds ive cleaned the connections and also cleaned the neutral saftey switch or gear selector and still no luck any help would be appreciated
×