3
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
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ELECTRONIC EXHAUST SYSTEM (E-VES-II)
– CABLE TRAVEL TEST
E-VES Cable Travel Inspection
NOTICE
The exhaust resonator and pipe do not need to be
removed to perform this procedure. If access to servo
motor / actuator cable is difficult, remove the resonator.
1. Open the left and right engine compartment door
panels.
2. Remove the hood assembly.
3. Use a 17 mm box wrench to loosen the actuator cable
jam nut.
IMPORTANT
Do not damage the Exhaust Gas Temperature (EGT)
sensor wire.
4. The rod-end of the actuator cable sits on a pin. To
remove, lift the rod-end up and off of the pin.
5. Hold the actuator cable as shown.
6. The rod-end can be pushed in and pulled out to test
cable / valve travel. The full-in to full-out travel
distance should meet specification.
MEASUREMENT
E-VES Cable Full-In to Full-Out Travel:
Approximately .59 - .69 in (15 - 17.5 mm)
7. When moving the cable, note the three valve
positions:
Low-Port (Upper / Lower Blades Down)
Mid-Port (Top Blades Down / Bottom Blades /
Boost Port Fingers Retracted)
NOTICE
The mid port position can be felt when the bottom
blades make contact with the upper blades.
ENGINE / COOLING / EXHAUST
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