Engine Break-In; Muffler; Operating Instructions; Starting And Stopping Engine - Arctic Cat AC 120 2007 Operator's Manual

The recommended oil to use in the
engine is a multi-grade or single grade
oil calibrated to the ambient tempera-
ture at which the engine is run. Select
the proper viscosity chart for details.
! CAUTION
Any oil used in place of the rec-
ommended oil may cause serious
engine damage.
Multi-Grade
Single-Grade

OPERATING INSTRUCTIONS

STARTING AND
STOPPING ENGINE
! WARNING
Never allow anyone to stand in
front of the snowmobile at any
time, especially when starting the
engine.
6

ENGINE BREAK-IN

The engine requires a short break-in
period (approximately 10 operating
hours) before being subjected to heavy
load conditions or full-throttle opera-
tion. Strict adherence to the break-in
procedure will contribute to optimum
performance and longevity of the
engine.
During break-in, a maximum of 1/2
throttle is recommended; however, brief
full-throttle accelerations and variations
in driving speeds contribute to good
engine break-in. After the 10 hour
break-in period, the snowmobile may
be taken to an authorized Arctic Cat
Snowmobile dealer for a checkup and
oil change. This service is at the discre-
GEN-0048 tion and expense of the snowmobile
owner.

MUFFLER

The muffler is designed to reduce
engine noise and improve the total per-
formance of the engine. If the muffler is
removed from the engine, severe engine
damage will result.
GEN-0049
It is imperative that all safety checks
found in the accompanying Snowmo-
bile Safety Handbook be performed
before attempting to start the engine.
This snowmobile is equipped with a
recoil starter. The recoil starter handle
is located on the lower right-hand side
of the console.