I can't get my Trailboss 250 running, no spark. I have checked and there is power coming from the mag, I have tried different coils that I know are good and still nothing. I've narrowed it to the CDI box. A stock unit from partsland.com is $219!! I found one on ebay here: http://cgi.ebay.com/ebaymotors/ws/eB...category=43976 Has anyone used these before, for the price compared to stock I think I will buy it. Thanks, Paul

 

I've got one on my scrambler 500 & it seems to work great . I don't have a tach , but it seems to turn the engine at little bit higher rpm than stock, but not so much higher that it's screaming.