1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 107Get this manual
FUEL SYSTEM TROL'BLE CHECK CHART INTAKE MANIFOLDLEAF PLATE ASSY
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