MAINTENANCE
Clean and inspect the spark arrester as follows:
•Remove spark arrester screen for cleaning and inspection (Figure 13).
Figure 13 - Spark Arrester
Typical Spark
Arrester Shown
•Inspect screen and replace if torn, perforated or otherwise damaged. DO NOT use a defective screen. If screen is not damaged, clean it with commercial solvent.
•Reattach spark arrester screen to muffler.
Servicing Spark Plug
Change the spark plug every 100 hours of operation or once each year, whichever comes first.This will help your engine to start easier and run better.
1.Clean area around spark plug.
2.Remove and inspect spark plug.
3.Check electrode gap with wire feeler gauge and set spark plug gap to 0.030 inch (0.76mm) if necessary (Figure 14).
Figure 14 — Service Spark Plug
4.Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use a recommended replacement plug.
5.Install spark plug and tighten firmly.
Clean Cooling System
Over time debris may accumulate in cylinder cooling fins and cannot be observed without partial engine disassembly. For this reason, we recommend you have a authorized service dealer clean the cooling system (Figure 15) per recommended intervals (see “Maintenance Schedule” on page 14). Equally important is to keep top of engine free from debris. See “Generator Cleaning”.
Figure 15 — Air Cooling System
Clean
Check Valve Clearance
Regular valve clearance check and adjustment will improve performance and extend engine life.This procedure cannot be done without partial engine disassembly and the use of special tools. For this reason we recommend that you have an authorized service dealer check and adjust valve clearance at recommended intervals.
Carburetor Adjustment
The carburetor on this engine is low emission. It is equipped with a
CAUTION
Excessively high operating speeds increase risk of injury and damage to generator.
Excessively low speeds impose a heavy load.
•DO NOT tamper with governed speed. Generator supplies correct rated frequency and voltage when running at governed speed.
•DO NOT modify generator in any way.
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