Suzuki outboard motors 1988 2003 repair manual., Page 195Get this manual
OIL INJECTION 6-3 Other problems, such oil remaining in the combustion chamber, tend to foul spark plugs and cause the engine to misfire at idleMost of these problems have been alleviated by the introduction of automatic oil injection systems One of the most common problems with oil injection systems is the use of poor quality injection oilPoor quality oil tends to gel in the system, clogging lines and filtersREMOVALINSTALLATION
See accompanying illustrations
Proper oil line routing and connections are essential for correct oil injection system operationThe line connections to the powerhead and oil pump look the same but may contain check valves of differing calibrationsOil lines must be installed between the pump and powerhead correctly and connected to the proper fittings on the intake manifold in order for the system to operate properly 1Turn the battery switch off andor disconnect the negative battery cable2Remove the engine cover3Position suitable container under the lower cowling to receive oil drained from the tank4Matchmark the oil line for installation reference5Squeeze the oil line to restrict the flow of oil while pulling it free from the fitting6Remove the clamp with pair of pliersIt is normal for 2-stroke engine to emit some blue smoke from the exhaustThe blue color of the smoke comes from the burning 2-stroke oilAn excessive amount of blue smoke indicates too much oil being injected into the engineOn Suzuki engines, this is usually caused by an incorrectly adjusted injection control rodIf the exhaust smoke is white, this is sign of water entering the combustion chamberWater may enter as condensation or more seriously may enter through defective head gasket or cracked headUsually white smoke from condensation will disappear quickly as the engine warmsIf the exhaust smoke is black, this is sign of an excessively rich fuel mixture or incorrect spark plugsThe black color of the smoke comes from the fuel burningPROCEDURE