9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
3.35
33. Loosen the two gear clamps
2(
securing the air box to
the throttle body.
34. Carefully remove the air box
3)
.
NOTICE
If removal is difficult and additional space is needed,
remove the ignition coils from the air box assembly.
35. Remove the exhaust valve assembly.
a. Do not remove the actuator cable
3!
off of the
actuator pin. The cable will remain installed.
b. Remove the four exhaust valve base fasteners
3@
retaining the electronic variable exhaust system.
c. Turn the handlebars to the right.
d. Pull the EV cable taut to bring the valves to the full
open position and remove the exhaust valve
assembly
3#
from the engine.
e. With the exhaust valve assembly removed and
still connected to the actuator, wrap exhaust valve
assembly in shop towel and place in the nose of
the snowmobile.