Steering Speed Ratio Adjustment; Drive Belt - Arctic Cat Sno Pro 500 Operator's Manual

STEERING SPEED RATIO
ADJUSTMENT
NOTE: The lower steering post bearing housing
is not symmetrical; therefore, rotating it 180°
moves the steering post closer to or farther away
from the drag link which changes the steering
ratio. The lower speed ratio (standard position) is
when the steering post is adjusted closest to the
drag link.
1. Remove the hood, side access panels, and the air
silencer assembly.
2. Remove the two bearing housing cap screws, the
roller cap screw, and the two upper steering post
mounting block cap screws.
3. Rotate the steering post so the steering arm comes
free from the drag link; then lift the steering post
slightly and rotate the lower bearing housing 180°
to a new position.
4. Install the two bearing housing cap screws, the
roller cap screw, and the two upper steering post
mounting block cap screws. Tighten hardware to
20 ft-lb.
5. Verify handlebar alignment (see Handlebar Align-
ment in this sub-section).

DRIVE BELT

Installing Belt
1. Set the brake lever lock; then remove the hood and
the left-side access panel.
24
2. Using Drive Belt Deflection Tool (p/n 0644-424),
thread the tool clockwise into the driven pulley
until the movable sheave opens far enough to
install the drive belt.
3. Place the belt (so the part number can be read)
between the sheaves of the drive clutch.
4. With the sheaves fully apart, roll the belt over the
stationary sheave.
5. With the drive belt properly positioned in the drive
clutch and driven pulley, turn the belt tool counter-
clockwise, release the brake lever lock, and roll
the belt back and forth to allow the driven pulley
sheaves to fully close.
6. After the belt is installed properly, install the hood
743-093A
and left-side access panel.
Never operate the snowmobile without the belt guard
secured in place.
Checking/Adjusting Deflection
Drive belt length, condition, and deflection are all
important for peak performance. To check and adjust
drive belt deflection, use the following procedure.
1. With the engine off; remove the hood and left-side
access panel.
743-094A
2. Make sure the drive belt is sitting at the top of the
driven pulley sheaves.
3. Place a straightedge on the top of the drive belt.
The straightedge should reach from the drive
clutch to the top of the driven pulley.
4. Using a stiff ruler centered between the drive
clutch and driven pulley, push down on the drive
belt just enough to remove all slack and note the
amount of deflection. The deflection should be
approximately 15.9-22.2 mm (5/8-7/8 in.).
NOTE: The amount of deflection should be exper-
imented with or tested to obtain best start-line per-
formance.
! WARNING
743-067B