41
0747-834
7. Adjust the headlight using the adjust-
ing screw on the backside of the head-
light using a 4 mm swivel socket and
long extension until correct aim is
obtained. Shut the engine off; then
disengage the brake lever lock.
0750-309
Ski Wear Bars
The ski wear bar is a replaceable bar
attached to the underside of the ski. The
purpose of the wear bar is to assist in turn-
ing the snowmobile, to minimize ski wear,
and to maintain good steering control. If
the snowmobile is operated primarily in
deep snow, ski wear bar wear will be mini-
mal; however, if the snowmobile is oper-
ated on terrain where the snow cover is
minimal, the ski wear bar will wear faster.
To maintain positive steering characteris-
tics, Yamaha recommends that the ski wear
bars be checked before each use and
replaced if worn beyond 1/2 of the original
diameter. Ski wear bars are available from
an authorized Yamaha Snowmobile dealer.
Removing (Single)
1. Using Front End Lift, elevate the
front of the snowmobile.
2. Remove the lock nuts securing the
wear bar to the ski.
0750-102
3. Remove the wear bar from the ski.
Installing (Single)
1. Move the wear bar into position on
the bottom of the ski.
2. Align the wear bar studs with the
holes in the ski; then install the lock
nuts. Tighten to 14.3-23.4 N-m
(124-203 in.-lb).
Removing (Dual)
1. Using Front End Lift, elevate the
front of the snowmobile.
2. Remove the lock nuts, washers, and
spacers securing the wear bars to the
ski.
3. Remove the wear bars from the ski.
NOTE: When the wear bars are
removed, measure the thickness of
both wear bars to see if they are
within the wear limit of 6.0 mm
(0.24 in.) (A). Replace as necessary.
SNO-813
NOTE: Measure the thickness of
the ski where the front and rear of
the wear bar contacts the ski to
see if it is within the wear limit of
13 mm (0.51 in.) (A) and 8 mm (0.31
in.) (B). Replace as necessary.
WARNING
Operating the snowmobile with
excessively worn ski wear bars may
result in a loss of steering control.
Aiming Surface
Horizontal Mark
Intense Beam
Adjusting Screw
Nut
Washer
Wear Bar
U8KCS1E0.book Page 41 Tuesday, May 16, 2017 5:42 PM
