30every every every25 50 100system/compornent procedure before hours hours hours noteuse after after afterfuel leaks, fuel spillage wipe out ✔fuel tank, air filter, fuel filter inspect/clean ✔ ✔ replace, if necessarysee ■ADJUSTING replace carburetoridle adjusting screw ✔IDLING SPEED (p.28) if necessaryclean and readjust GAP: .025in(0.6~0.7mm)spark plug ✔plug gap replace, if necessarycylinder fins, intake air cooling vent clean ✔muffler, spark arrester, cylinder exhaust port clean ✔throttle trigger, stop switch check operation ✔screws/nuts/bolts tighten/replace ✔ ✔ not adjusting screws■ MAINTENANCE CHARTMaintenance, replacement, or repair of the emission controldevice and systems may be performed by any non-road enginerepair establishment or individual.9. Maintenance English