1998-2004 Honda Foreman 450 factory service manual, Page 463Get this manual
TECHNICAL FEATURES SELECTABLE 4WD SYSTEM (After '01) CONSTRUCTION This mechanism controls the selectable 4WDThe rider selects either 2WD or 4WD on the 2WD4WD switch that is located on the right handlebarSelection is possible when driving
This compact mechanism is operated by an electromagnetic mechanical clutch (electro-magnetically activated bi-directional roller clutches) and drives bUilt-in front differential pinion gearThis system provides for smooth and quiet operationYou can also shift smoothly between 2WD and 4WD