Polaris 850 PRO-RMK 155 2.6" QD 2021, Manual

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9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
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15. Pressurize the tank to 5 PSI. The tank will change
shape when pressurized. This is normal.
NOTICE
The fuel tank has a large volume, and using a low
volume hand pump to pressurize it can take a very long
time. The attachment of an air valve stem in-line with
the pressure supply line will allow the use of a larger
volume pump (i.e. bicycle tire pump). This will
considerably reduce the amount of time required to
reach 5 PSI. Use the optional Schrader valve listed in
the tools list, if desired. If you use a larger volume
pump, be sure to monitor the pressure on the gauge
constantly so that 6 PSI is never exceeded.
IMPORTANT
DO NOT USE SHOP COMPRESSED AIR
16. Saturate the PFA nut area with the soap solution.
17. Inspect for leaks under the PFA nut, around the top
perimeter of the pump flange, around the base of the
fuel fittings, and around the plastic wire pass-thru on
top of the PFA. There may be bubbles present from
the initial application of soap solution. These bubbles
can be popped by lightly blowing on them. Watch for
new bubbles forming. Bubbles formed can be very
small, so look closely. Apply soap solution during
inspection if needed.
18. If there is a leak, slowly release the pressure from the
tank. Check the PFA nut torque and repeat pressure
test. If leak is still present, a new tank assembly will
be required.
19. If no leaks are detected, the tank assembly is
adequately sealed and ready for installation into the
snowmobile.
20. Complete the installation process by following the
Fuel Tank Installation procedure.
FUEL SYSTEM