Linhai LH40DA - Throttle Control and Engine Popping; Parking on an Incline

LH40DA OWNER’S/OPERATOR’S MANUAL 18.0
10. DRIVING YOUR VEHICLE
10- 9
CAUTION
Opening the throttle more than required may cause excessive fuel to
build in the exhaust, resulting in engine popping and/or engine damage.
WARNING
Opening the throttle more than required may cause excessive fuel to
build in the exhaust, and ignited by the catalyst in the muffler, MAY
RESULT IN THE MUFFLERS OVERHEATING AND FIRE RISK.
Never ride with engine popping more than 1 minutes.
Parking on an incline