Ryobi RY252CS User Manual - Page 18
Troubleshooting - spool
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TROUBLESHOOTING IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER. PROBLEM POSSIBLE CAUSE SOLUTION Engine will not start Engine does not reach full speed and emits excessive smoke Engine starts, runs, and accelerates but will not idle Line will not advance Spool retainer hard to turn Grass wraps around drive shaft housing and string head 1. No spark. 2. No fuel. 3. Engine is flooded. 1. Incorrect lubricant/fuel mixture. 2. Air filter screen is dirty. 3. Spark arrestor screen is dirty. 4. Spark plug fouled. 1. Idle speed screw on carburetor needs adjustment. 1. Line is welded to itself. 2. Not enough line on spool. 3. Line is worn too short. 4. Line is tangled on spool. 5. Engine speed is too slow. 1. Screw threads are dirty or damaged. 1. Cutting tall grass at ground level. 2. Operating trimmer at part throttle. 1. Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual. 2. Push primer bulb until bulb is full of fuel. If bulb does not fill, primary fuel delivery system is blocked. Contact an authorized service dealer. If primer bulb fills, engine may be flooded, proceed to next item. 3. Set the CHOKE lever to the FULL CHOKE position. Squeeze the trigger and pull the rope repeatedly until the engine starts and runs. NOTE: Depending on the severity of the flooding, this may require numerous pulls of the rope. 1. Use fresh fuel and the correct 2-cycle lubricant mix. (50:1). 2. Clean air filter screen. Refer to Cleaning the Air Filter earlier in this manual. 3. Contact an authorized servicing dealer. 4. Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual. 1. Turn idle speed screw clockwise to increase idle speed. See Figure 19. 1. Lubricate line with silicone spray. 2. Install more line. Refer to the applicable line replacement section in this manual. 3. Pull lines while alternately pressing down on and releasing spool retainer. 4. Remove line from spool and rewind. Refer to the applicable line replacement section in this manual. 5. Advance line at full throttle. 1. Clean threads and lubricate with grease - if no improvement, replace the spool retainer. 1. Cut tall grass from the top down to prevent wrapping. 2. Operate trimmer at full throttle. 14 - English