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To maintain positive steering characteris-
tics, Yamaha recommends that the ski
wear bars be checked once a week and
replaced if worn to 1/2 of original diame-
ter. Ski wear bars are available from an
authorized Yamaha Snowmobile dealer.
Removing Ski Wear Bar
1. Remove ice and snow buildup from
the ski.
2. With the gas tank nearly empty (less
than 1/4 full), lay the snowmobile on
its side. A piece of cardboard should
be used to protect the finish on the
hood and belly pan.
3. Remove the lock nuts securing the
wear bar to the ski.
0743-187
4. Pry the rear of the wear bar down
until both of the wear bar studs are
clear of the ski; then slide the wear
bar rearward until the front of the
wear bar is free from the ski.
5. Remove the wear bar.
Installing Ski Wear Bar
1. Insert the front of the wear bar into
the hole at the front of the ski and
swing the rear of the wear bar
upward.
2. Insert the wear bar studs into the
holes in the ski.
3. Center the wear bar studs in the
holes and install the lock nuts.
4. Tighten lock nuts securely.
Rail Wear Strips
Yamaha recommends that the wear strips
be checked weekly and replaced as nec-
essary.
NOTE: The rail wear strips will
wear rapidly if the snowmobile is
operated on terrain on which the
snow cover is minimal. Loose snow
is required to cool and lubricate the
wear strips and prevent accelerated
wear.
Recoil Starter Air
Vents
It is important for proper engine cooling
that the air vents located on the recoil
starter are kept clean. These air vents
should be checked periodically and
cleaned if necessary.
0744-923
Lights
The correct headlight bulb is p/n 8JM-
H4314-00. The correct taillight (LED) is
p/n 8JM-H4710-10.
To change the headlight bulb, use the fol-
lowing procedure:
1. Open the hood; then disconnect the
harness connector from the head-
light bulb.
! WARNING
Operating the snowmobile with
excessively worn ski wear bars may
result in a loss of steering control.
! WARNING
DO NOT bend the ski wear bar exces-
sively when installing. Excessive
bending of the ski wear bar may
cause premature wear, breakage,
and possible injury.
CAUTION
Serious overheating of the engine
and engine damage will result if the
air vents are not kept clean.
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