My Suzuki df70 had 6.5 quarts of oil in it when I drained the oil.. Only 5 hours on motor since last oil change. The oil was real thin almost like it had gas in it. Also the vent pipe from the crankcase has to be off before the motor will Idle smooth.. Check engine light came on 3-1.. Disconnected the hose to the carb and in a few minutes it cleared.. Any help would be appreciated on this situation.. Using Suzuki oil and filter as recommended