Home › Forum › Ask A Member › QD 19 Johnson, excess oil and fuel in water › Re: QD 19 Johnson, excess oil and fuel in water
October 24, 2015 at 2:49 am
#25943
Low compression or being out of tune will cause incomplete burning of the fuel mix. Too high of a float level in the carb can let too much fuel go thru the motor to.
How does the QD 18 troll for long periods of time? The crankcase drain may be plugged in it and clear in the QD 19. The drain dumps excess fuel straight into the exhaust housing and will leave a slick behind the boat after idling for a while.