![]() Search for clues on the outboard - Most reliable!Ī good proportion of outboard manufacturers will print/inscribe/stamp the right fuel mix ratio somewhere on the unit itself. This might be really obvious on the cowling like in the image below of a late 1980s Yamaha outboard or it can be a bit trickier to track down being on the underside of the cowling, embossed on the fuel filler cap (outside or inside) or stamped on the side of the fuel tank. These are the most common locations but if you don't find any reference in these common places look for a reference on any engine number, batch or quality controls stickers or plates. This Yamaha's fuel mix ratio is clearly marked on the cowling at 1:100 Method 2. (0.006-0_014 in.If a robust search of the engine doesn't surface anything the next best method is to reference either the original manufacturers owners handbook/operators guide or a service and repair manual. The reed valve is located in a reed plate that is located Diaphragm should be renewed if air leaks or cracks are found. defective or questionable parts should be renewed. SZ2-2) is mounted on the side of power head cylinder blOCk and is actuated by pressure and vacuum pulsations from the engine crankcase. Adjust float level by bending float tang.įUEL PUMP. Base of float (6) should be 12-14 rnm (0.47-0.55 in.) away from sealing ring surface of carburetor body with sealing ring (3) removed. remove float bowl (7) and invert carburetor body (1). Standard main jet size for normal operation is #90. Main fuel metering is controlled by main jet (2). readjust throttle stop screw to obtain 900-1000 rpm idle speed. Adjust pilot air screw so engine idles smooth and will accelerate c1eanlv without hesitation. Adjust throttle stop screw (12) so engine idles at approximately 900-1000 rpm. Final carburetor adjustment should be made with engine at normal operating temperature and running in forward gear. Initial setting of pilot air screw (15) from a lightly seated position should be 3/.-11/. to ensure a water tight seal.ĬARBURETOR. Reinstall vent and fill plugs securely using a new gasket, if necessary. The lower unit gears and bearings are lubricated by approximately 85 mL (2.9 ozs.) of SAE 90 hypoid outboard gear oil. Gasoline and oil should be thoroughly mixed. Manufacturer recommends regular or no-lead automotive gasoline having an 85-95 octane rating. ![]() fuel :oil ratios should be 20:1 during break-in and 30:1 for normal service. When using any other type of two-stroke engine oil. Fuel:oil ratios should be 30:1 during break-in of a new or rebuilt engine and 50: 1 for normal service when using a BIA certified TC-W engine oil or Suzuki "CCI" oil. The power head is lubricated by oil mixed with the fuel. Breaker Point Power Head Mounting Screws and Nuts. 22-35 N'm (195-310 in.-Ibs.)ĬONDENSED SERVICE DATA NOTE: Metric fasteners are used throughout outboard motor. NOTE: Metric fasteners are used throughout outboard motor. For example, if first number in serial number is 1, model year is 1981. Starting with 1980, the first number in serial number corresponds with model year. ![]() The years 1977, 19 are identified by the letters "C," "D" and "F" respectively. The first character of serial number indicates year of manufacture. The first six characters indicate the model and second six characters are motor serial number. 22-35 N'm (195-310 in.-Ibs.)ġb determine model and year of manufacture of Suzuki outboard motors, refer to numbers located on motor clamp bracket. 3.0 mm (0.118 in.) TIGHTENING TORQUES Cylinder Head. See Text SIZES-CLEARANCES Piston Ring End Gap. Crankshaft Runout at Main Suzuki OT2 Bore. CONDENSED SERVICE DATA NOTE: Metric fasteners are used throughout outboard motor. Box 1100 Brea, California 92621 SUZUKI DT2 1b determine model and year of manufacture of Suzuki outboard motors, refer to numbers located on motor clamp bracket. SERVICE MANUAL TUNE-UP SUZUKI SUZUKI AMERICA CORPORATION 3251 E. ![]()
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