Re: HELP!!! 2001 Suzuki DT 225 only have 3 of 6 cylinders firing
Can't say for sure, but it sounds like its running in safe mode. My DT 150 SS was, when I got it and I had to remove the low oil warning module (connected to CDI) Mine was unavailable for replacement, so disconnected and all cyl were firing again. Mine is an 87, so I'm not sure about your 2001, if that would hold true for yours. Low oil sensor just tells the CDI you are out of oil and keeps you from burning up the motor. Could be another issue, but that's what I had happen to me.