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107 MAINTENANCE Spark Plugs A new engine can cause temporary spark plug fouling due to the preser- NOTICE: Using non-recommended spark plugs can result in serious engine damage. A spark plug with a heat range too high will always cause • Use recommended spark plugs with the proper gap. Refer to the spec- ifications section beginning on page 142. • Use only resistor-type spark plugs. • Torque spark plugs to 18-20 ft. lbs. (24-27 Nm). Check the spark plug firing end condition after the engine has been CAUTION! A hot exhaust system and engine can cause burns. Wear |