2008 Polaris ATV Predator 50, Sportsman Outlaw 90 Service Manual, Page 23Get this manual
MAINTENANCE ETC Operation
When the throttle is closed (idle) the throttle arm depresses small micro switch that limits engine rpmThrottle Arm
ETC Switch Adjustment
1Slide the boot off the throttle cable adjuster and jam nut
Micro Switch Switch 2Set parking brake3Start engine and set idle to specified RPMNOTE: Be sure the engine is at operating temperatureSee "Idle Speed Adjustment 4Loosen the adjustment nut on inline cable adjuster
When the throttle lever is pushed forward the throttle arm moves off the micro switch and allows the engine rpm to increase with lever movementSwitch