Muffler, Spark Arrestor, and Brakes
Muffler and Spark Arrestor
A muffler with a USDA Forest Service–approved spark arrestor is required on all OHVs. The muffler must prevent engine noise in excess of 96dB when tested at the half-meter test according to the SAE J1287 sound-testing procedure.
Make sure your brakes can control and stop your OHV.