1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 109Get this manual
FUEL SYSTEM TROUBLE CHECK CHART FUEL TANK AND FILTER
VRO SYSTEM
CARBURETOR
INTAKE MANIFOLDLEAF PLATE ASSEMBLY
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 LOSS OF W.O.TRPM CARBURETOR FUEL SPITBACK