1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 96Get this manual
FUEL SVSTEIM TROUBLE CHECK CHART
ENGINE WILL NOT START
STARTS, WILL NOT IDLE
WILL NOT IDLE SLOWLY
SPITS AT IDLE, LEAN
ENGINE RICH AT IDLE
EXCESSIVE OIL USE
STALLS ON ACCELERATION
SURGES AT HIGH SPEED
RUNS RICH AT HIGH SPEED