Arctic Cat M 8000, Service Manual

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General
Information/Foreword
 NOTE: General specifications for each 2016 Arctic
Cat Snowmobile can be accessed from the Arctic Cat
Cat Tracker Dealer Communication System online.
 NOTE: Some illustrations and photographs used in
this section are used for clarity purposes only and are
not designed to depict actual conditions.
This Arctic Cat Service Manual contains service and main-
tenance information for certain Model Year 2016 Arctic
Cat Snowmobiles (see cover). The manual is designed to
aid service personnel in service-oriented applications.
This manual is divided into sections. The sections cover
specific snowmobile components or systems and, in
addition to the standard service procedures, includes
assembling, disassembling, and inspecting instructions.
When using this manual as a guide, the technician should
use discretion as to how much disassembly is needed to
correct any given condition.
The service technician should become familiar with the
operation and construction of the components or systems
by carefully studying the complete manual. This will
assist the service technician in becoming more aware of
and efficient with servicing procedures. Such efficiency
not only helps build consumer confidence but also saves
time and labor.
All Arctic Cat publications and snowmobile decals dis-
play the words Warning, Caution, and Note to emphasize
important information. The symbol
! WARNING
identifies personal safety-related information. Be sure to
follow the directive because it deals with the possibility
of severe personal injury or even death. A CAUTION
identifies unsafe practices which may result in snowmo-
bile-related damage. Follow the directive because it deals
with the possibility of damaging part or parts of the
snowmobile. The symbol 
NOTE:
identifies supple-
mentary information worthy of particular attention.
At the time of publication, all information, photographs,
and illustrations were technically correct. Some photo-
graphs and illustrations used in this manual are used for
clarity purposes only and are not designed to depict actual
conditions. Because Arctic Cat Inc. constantly refines and
improves its products, no retroactive obligation is incurred.
All materials and specifications are subject to change
without notice.
Product Service and Warranty Department
Arctic Cat Inc.
Snowmobile Identification
The Arctic Cat Snowmobile has two important identifica-
tion numbers. The Vehicle Identification Number (VIN)
is stamped into the tunnel near the right-side footrest.
The decal also displays pertinent production information.
The Engine Serial Number (ESN) is stamped into the
crankcase of the engine.
These numbers are required to complete warranty claims prop-
erly. No warranty will be allowed by Arctic Cat if the engine
serial number or VIN is removed or mutilated in any way.
Recommended Gasoline
and Oil
RECOMMENDED GASOLINE
6000/8000
The recommended gasoline to use is 91 octane (mini-
mum).

NOTE: If a situation arises in which 91 octane gaso-
line is not available, 87 octane gasoline can be substi-
tuted; however, do not prolong the usage of 87 octane
gasoline as it will cause poor engine performance.
In many areas, oxygenates are added to the gasoline.
Oxygenated gasolines containing up to 10% ethanol are
acceptable gasolines.
4000
The recommended gasoline to use is 87 octane regular
unleaded. In many areas, oxygenates are added to the
gasoline. Oxygenated gasolines containing up to 10%
ethanol are acceptable gasolines.
When using ethanol blended gasoline, it is not necessary
to add a gasoline antifreeze since ethanol will prevent the
accumulation of moisture in the fuel system.
RECOMMENDED OIL
The recommended oil to use in the oil-injection system is
either Arctic Cat C-Tec2 for the 6000 or Arctic Cat APV
Synthetic 2-Cycle Oil for the 4000/8000. These oils are
specially formulated to be used either as an injection oil
or as a pre-mix oil (for break-in) and meets all of the
lubrication requirements of the Arctic Cat snowmobile
engine.
CAUTION
Do not use white gas or gasoline containing methanol.
Only Arctic Cat approved gasoline additives should be
used.
CAUTION
Any oil used in place of the recommended oil may
cause serious damage.
CAUTION
Any oil used in place of the recommended oil could
cause serious engine damage.