Poulan SM132 User Manual - Page 8

REPLACE SPARK PLUG Replace the spark plug each year to ensure the engine starts easier and runs better. Set spark plug gap at 0.025 inch (0.6 mm). Ignition timing is fixed and nonadjustable. 1. Twist, then pull off spark plug boot. 2. Remove spark plug from cylinder and discard. 3. Replace with Champion RCJ-6Y spark plug and tighten securely with a 3/4 inch (19 mm) socket wrench. 4. Reinstall the spark plug boot. SERVICE AND ADJUSTMENTS REPLACING THE LINE 1. Remove spool by firmly pulling on tap button. 2. Clean entire surface of hub and spool. 3. Replace with a pre-wound spool, or cut two lengths of 12-1/2 feet of 0.080! (2 mm) diameter Poulan PROr brand line. Screwdriver WARNING: Never use wire, rope, string, etc., which can break off and become a dangerous missile. 4. Insert ends of the lines about 1/2 inch (1 cm) into the small holes on the inside of spool. Spool Small Holes 3. While holding the screwdriver in position, remove trimmer head by turning clockwise. 4. Thread replacement trimmer head onto the shaft by turning counterclockwise. Tighten until secure. 5. Remove the screwdriver. CARBURETOR ADJUSTMENT Line exit holes Line in Notch Line in Notch Hub 5. Wind the line evenly and tightly onto the spool. Wind in the direction of the arrows found on the spool. 6. Push the lines into the notches, leaving 3 to 5 inches (7 -- 12 cm) unwound. 7. Insert the lines into the the exit holes in the hub as shown in the illustration. 8. Align the notches with the line exit holes. 9. Push spool into hub until it snaps into place. 10. Pull the lines extending outside of the hub to release the lines from the notches. WARNING: Keep others away when making idle speed adjustments. The trimmer head will be spinning during this procedure. Wear your protective equipment and observe all safety precautions. The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions: S Engine will not idle when the throttle is released. Make adjustments with the unit supported so the cutting attachment is off the ground and will not make contact with any object. Hold the unit by hand while running and making adjustments. Keep all parts of your body away from the cutting attachment and muffler. Idle Speed Adjustment Allow engine to idle. Adjust speed until engine runs without stalling (idle speed too slow). S Turn idle speed screw clockwise to increase engine speed if engine stalls or dies. S Turn idle speed screw counterclockwise to decrease engine speed. Air Filter Cover REPLACING THE TRIMMER HEAD 1. Align hole in the dust cup with the hole in the side of the gearbox by rotating the dust cup. 2. Insert a small screwdriver into aligned holes. This will keep the shaft from turning while removing and installing the trimmer head. Idle Speed Screw If you require further assistance or are unsure about performing this procedure, contact an authorized service dealer or call 1--800--554--6723. 8