My 87 dt200 was running ok after a good cleaning of the carbs and adjustment of the carbs. then the adjuster screw on the starter valve popped out because of the vibrations of the motor. i luckily found it and replace it and now I can't get it running right. one moment it will run ok then it will stall and not start for a while, then run then stall back a forth. also it now backfires. any ideas? Im thinking either the carbs arent adjusted right or my coils arent giving me consistent spark. Im all out of ideas, please someone help. any and all feedback is appeciated! thanks
