Anyone out there had a CDI unit go bad. I live in the middle of bf nowhere and have no way to test mine, and I'm curious if anyone has had same symptoms. Here's what happened- The bike- o2wrf was new, and one week old and running like a top it suddenly dies like out of gas. It restarts and idles, but anything over 1/8 throttle it bogs bad. Won't rev over about 2500 rpm, loads up and backfires through carb. Cleaned the carb several times to no avail. Borrowed a carb of a fine running yzf, and the wr still had same symptoms. Did a meticulous valve job, was surprized to find carbon on the seats of a 1 week old machine. Failed the leak test too. Cleaned it up like new again, fired it up. Symptoms did NOT change one iota. TPS checked out ok. Using same good gas as fine running yzf. Airfilter fine. Plug fine. I guess its narrowed down to CDI? or rings? Any thoughts?