9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
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SERVICE PRECAUTIONS
In order to perform service work efficiently and to prevent
costly errors, the technician should read this manual,
thoroughly familiarizing him/herself with procedures
before beginning. Photographs and illustrations have
been included as an aid. Notes, cautions and warnings
have also been included for clarification and safety
concerns. However, a knowledge of mechanical theory,
tool use and shop procedures is necessary to perform
the service work safely and satisfactorily. Use only
genuine Polaris service parts.
CAUTION
Watch for sharp edges which can cause personal injury,
particularly in the area of the tunnel. Protect hands with
gloves when working with sharp components.
IMPORTANT
Cleanliness of parts, tools, and work area are of
primary importance. Dirt and foreign matter will act as
an abrasive and cause damage to precision parts.
Clean the snowmobile before beginning service. Clean
new parts before installing.
CAUTION
If difficulty is encountered in removing or installing a
component, look to see if a cause can be found. If it is
necessary to tap the part into place, use a soft face
hammer and tap lightly.
IMPORTANT
Some of the fasteners in the snowmobile were installed
with locking agents. Use of impact drivers or wrenches
will help avoid damage to fasteners.
CAUTION
Always follow torque specifications as outlined
throughout this manual. Incorrect torquing may lead to
serious machine damage or, as in the case of steering
components, can result in injury or death for the rider
(s).
IMPORTANT
If a torquing sequence is indicated for nuts, bolts, or
screws, start all fasteners in their holes and hand
tighten. Following the manual exactly, tighten to the
specified torque value. When removing nuts, bolts, or
screws from a part with several fasteners, loosen them
all about 1/4 turn before removing them.
IMPORTANT
If the condition of any gasket or O-Ring is in question,
replace it with a new one. Be sure the mating surfaces
around the gasket are clean and smooth in order to
avoid leaks.
IMPORTANT
Some procedures will require removal of retaining rings
or clips. Because removal weakens and deforms these
parts, they should always be replaced with new ones.
When installing new retaining rings and clips use care
not to expand or compress them beyond what is
required.
IMPORTANT
Because removal damages seals, replace any oil or
grease seals removed with new parts.
IMPORTANT
Polaris recommends the use of Polaris lubricants and
greases, which have been specially formulated for the
top performance and best protection of our machines.
In some applications, such as the engine, warranty
coverage may become void if other brands are
substituted.
IMPORTANT
Grease should be cleaned from parts and fresh grease
applied before reassembly of components.
Deteriorating grease loses lubricity and may contain
abrasive foreign matter.
