Honda HP400 Owner's Manual page 19

3. When the engine is cold, move the throttle lever to the FAST position and
move the choke rod to the CLOSE position.
CHOKE ROD
I
FAS
THROlTLE LEVER
NOTE: If restarting a warm engine, the choke will not be needed. Restart a
warm engine with the throttle lever in the SLOW position and choke rod in the
OPEN position.
4. Turn the engine switch to the ON position.
ENGINE SWliCH
17