Honeywell HW2000i Owners Manual - Page 31

Spark Plug Service Spark Plug Service Spark Plug Service To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. WARNING If the engine has been running, the muffler will reach temperatures that could cause severe burns. DO NOT TOUCH. Recommended Spark Plug Replacement: 101566A* HW1000i NGK CR5HSA Bosch -- Champion -- Denso U16FSR-U TABLE 7. Spark Plug Equivalents HW2000i CR6HSA UR6AC P-RZ9HC U20FSR-U To service the spark plug, you will need: ‰ Clean cloth ‰ Spark plug wrench ‰ New spark plug (if existing spark plug is exces- sively worn or damaged) ‰ Wire brush ‰ Spark plug gauge (for setting spark plug gap) 1. Stop the generator if the engine is running. Allow to completely cool. 2. Place the generator on a flat, level surface. 3. Remove the top maintenance cover. 4. Remove the spark plug cap. FIGURE 40: Spark Plug Cap Removal 5. Clean any dirt from around spark plug base. 6. Using the spark plug wrench, loosen and remove the spark plug. FIGURE 41: Spark Plug Removal 7. Inspect the spark plug. „ If spark plug is damaged or excessively worn, or if insulator is cracked or chipped, use a new spark plug. „ If the spark plug is in good condition, clean spark plug with wire brush. 8. Measure spark plug gap with spark plug gauge. Gap should be: 0.024-0.028 in. (0.60-0.70 mm). 0.024-0.028 in (0.60-0.70 mm) FIGURE 42: Correct Spark Plug Gap 9. If necessary, adjust gap by carefully bending side electrode. 10. Inspect spark plug washer and verify it is in good condition. 11. Reinstall the spark plug by hand to prevent crossthreading. 12. After the spark plug is seated, tighten with the spark plug wrench to compress the washer. „ If installing a new spark plug, tighten l/2 turn after the spark plug seats to compress the washer. „ If reinstalling a used spark plug, tighten l/8 - l/4 turn after the spark plug seats to compress the washer. 13. Reinstall the top maintenance cover. NOTICE The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and could damage engine. Never use spark plugs that have an improper heat range. Use only recommended spark plugs or equivalent. * See Maintenance Parts at the end of this manual. HW1000i / HW2000i Inverter Generator Owner's Manual www.honeywellgenerators.com 25