Spark Plug; Spark Plug - Arctic Cat 366 2010 Operator's Manual

 NOTE: Some jumper cables may
be the same color but the clamps
or ends will be color-coded red
and black.
7. Attach one clamp of the negative
(black) jumper cable to the nega-
tive (-) terminal (3) of the good bat-
tery (B); then attach the other
clamp of the negative (black)
jumper cable (4) to an unpainted
metal surface (A) on the engine or
frame well away from the dead bat-
tery and fuel system components.
! WARNING
Never make the final connection to
a battery as a spark could ignite
hydrogen gases causing an explo-
sion of the battery resulting in acid
burns or blindness.
8. Stand well away from the dead
battery and start the vehicle with
the good battery. Allow the vehicle
to run for several minutes applying
some charge to the dead battery.
9. Start the vehicle with the dead bat-
tery and allow it to run for several
minutes before disconnecting the
jumper cables.
10. Remove the jumper cables in
opposite order of hook-up (4, 3, 2,
1). Be careful not to short cables
against bare metal.
 NOTE: Have the battery and elec-
trical system checked prior to
operating the vehicle again.

SPARK PLUG

The ATV comes equipped with a speci-
fied spark plug. See the Specifications
chart for the correct spark plug. A light
brown insulator indicates that the plug
is correct. A white or dark insulator
indicates that the engine may need to
be serviced or the carburetor may need
to be adjusted. Consult an authorized
0744-527
Arctic Cat ATV dealer if the plug insu-
lator is not a light brown color.
To help prevent cold weather fouling,
make sure to thoroughly warm up the
engine before operating. To maintain a
hot, strong spark, keep the plug free of
carbon.
Before removing the spark plug, be
sure to clean the area around the spark
plug. If you do not, dirt could enter
engine when removing or installing the

spark plug.

Adjust the gap to 0.7-0.8 mm (0.028-
0.032 in.) for proper ignition. Use a
wire-type feeler gauge to check the gap.
When installing the spark plug, be sure
to tighten it securely. A new spark plug
should be tightened 1/2 turn once the
washer contacts the cylinder head. A
used spark plug should be tightened
1/8-1/4 turn once the washer contacts
the cylinder head.
0.7-0.8 mm
(0.028-0.032 in.)
ATV-0052
69