Ryobi RY10520 Operator's Manual - Page 35
Cleaning The Engine, Warning, Checking The Fuel Filter, Replacing The Spark Plug
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MAINTENANCE CLEANING THE ENGINE See Figures 67 - 68. Clean the cylinder fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the cylinder. WARNING Never run the saw without all the parts, including the clutch cover and starter housing, securely in place. Because parts can fracture and pose a danger of thrown objects, leave repairs of the flywheel and clutch to factory trained authorized service center personnel. NOTE: If you notice a power loss with the gaspowered tool, the exhaust port and muffler may be blocked with carbon deposits. These deposits may need to be removed to restore performance. We highly recommend that only qualified service technicians perform this service. CHECKING THE FUEL FILTER See Figure 69. Check the fuel filter periodically. If contaminated or damaged, have fuel filter replaced by an authorized service center. REPLACING THE SPARK PLUG See Figure 70. This engine uses a Champion RCJ6Y with .025 in. electrode gap. Use an exact replacement and replace every 50 hours or more frequently, if necessary. n Loosen the spark plug by turning it counter- clockwise with a wrench. n Remove the spark plug. n Hand thread the new spark plug, turning it clockwise. Tighten securely with wrench. NOTE: Be careful not to cross-thread the spark plug. Cross-threading will seriously damage the cylinder. CLEAN CYLINDER FINS CLEAN FLYWHEEL FINS FUEL FILTER Page 35 - English Fig. 67 Fig. 68 Fig. 69 Fig. 70