| Every 50 hours | Engine Oil & Filter | Oil: SAE 10W-30 | Capacity: 1.16 qt (1.1 L) - First 25 hrs or first month; then every 50 hrs or every 6 months (more often under heavy load/high temperatures) |
| Every 100 hours | Fuel Filter | Replace every 100 hrs or every 6 months |
| Every 100 hours | Valve Clearance | Inspect/adjust every 100 hours or every 6 months. Intake 0.0031-0.0047 in (0.08-0.12 mm); exhaust 0.0051-0.0067 in (0.13-0.17 mm). Rocker arm pivot nut torque 106 in-lb (12 N-m). Westinghouse recommends an authorized service dealer perform this. |
| Every 100 hours | Spark Arrestor | Inspect and clean every 100 hours or every 6 months. Westinghouse spark arrestor part no. 6866. |
| Every 300 hours | Air Filter | Clean every 50 hrs or 6 months; replace every 300 hrs or every year |
| Every 300 hours | Spark Plug | Plug: Westinghouse part no. 97108; gap 0.024 - 0.032 in (0.60 - 0.80 mm) - Inspect/clean every 100 hrs or 6 months; replace every 300 hrs or every year |