Ryobi RY3818 Operation Manual - Page 35

MAINTENANCE NOTE: Be careful not to cross-thread the spark plug. Cross-threading will damage the cylinder. CLEANING THE EXHAUST PORT, REPLACING MUFFLER AND SPARK ARRESTOR NOTICE: This product is equipped with a spark arrestor that has been evaluated by the USDA Forest Service; however, product users must comply with Federal, State, and local fire prevention regulations. Check with appropriate authorities. Contact customer service or a qualified service center to purchase a replacement spark arrestor. NOTE: Depending on the type of fuel used, the type and amount of lubricant used, and/or your operating conditions, the exhaust port, muffler, and/ or spark arrestor screen may become blocked with carbon deposits. If you notice a power loss with your gas powered tool, you may need to remove these deposits to restore performance. We highly recommend that only qualified service technicians perform this service. The spark arrestor must be replaced every 50 hours to ensure proper performance of your product. Spark arrestors may be in different locations depending on the model purchased. Please contact your nearest service dealer for the location of the spark arrestor for your model. WARNING: Never run the chain saw without a muffler equipped with a spark arrestor in place. Failure to do so could result in a fire that could cause serious personal injury. CLEAN CYLINDER FINS FUEL FILTER TIGHTEN LOOSEN Fig. 63 Fig. 64 Page 35 - English SPARK PLUG Fig. 65