1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 316Get this manual
ELECTRICAL RPM Limiter !Ignition Timing Retard Troubleshooting Exhaust Valve Electrical Control System Troubleshooting
The exhaust valve actuator can be checked by taking resistance measurements and applying 12 volt DC battery source to the exhaust valve actuator motorFollow the procedure below to determine if the actuator control unit is faulty or if the COl unit, or related wiring is at fault
(Mounted on left rear of deck with grab handle bolts) EXHAUST VALVE ACTUATOR CONTROL BOX
RIW Blk WR LGN GRN
EXHAUST VA LVE CABL E
(MAY BE GREENIBLUE)
Do not leave battery connected to the exhaust valve actuator wire terminalsContact the terminals momentarily to move the valves in the desired direction, and them disconnect the probes
BatteryWire Color (terminal)
Battery WlBlk
Effect Opens Valve Closes Valve
WfR WlBlk