Brakes - BRP ski-doo MX Z X 440 RACING Handbook

Rear Axle
The idlers should be placed so that they run be-
tween the left and right double rows of drive lugs.
This will help maintain alignment of the track and
lessen the chance of derailing.
Use the spacing shown in the drawing.
A
A01F1HA
A. 101.5 mm (3-63/64 in)
B. 123 mm (4-27/32 in)
C. 101.5 mm (3-63/64 in)
D. 326 mm (12.83 in)
There are grease fittings on all moving parts of the
suspension and they should be greased on a
weekly basis with a quality, low temperature
grease (P/N 413 711 500).
Finally, adjust the track tension and alignment.
Track tension and alignment are most critical to
top speed. Make certain the track is aligned so
that you have equal clearance between the slider
shoe and the track guides on each side of the
snowmobile.
TYPICAL
1. 7.3 kg (16 lb)
2. Deflection
MMC2005-001_03A.FM
C
B
D
SECTION 03 - CHASSIS PREPARATION
For straight line racing, top speed can sometimes
be increased by running the track a bit looser.
Ratcheting of the drive sprockets during hard ac-
celeration can occur if the track is too loose. Con-
versely, heavily studded tracks may need to be
tighter to achieve top speed because the extra
weight of the studs may cause the track to balloon
out at high speeds.
NOTE: Track tension should be checked whenev-
er major changes are made to the limiter strap
length and/or ride height changes.

BRAKES

If extreme brake use is anticipated, use 3 inch di-
ameter dryer hose (or equivalent) to route outside
air directly from the hood vents to the brake area.
SKI-DOO hydraulic brake systems use DOT 4
brake fluid. For conditions where extreme brake
heat is generated, DOT 5 fluid can be used. DOT
5 has a higher boiling point but it is more suscep-
tible to moisture intrusion and should be changed
on a regular basis.
If the brakes become spongy, the system should
be bled to remove any air bubbles. If the brake
fluid is dark and/or cloudy, flush the complete sys-
tem and refill with fresh brake fluid.
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