Skis And Runners - BOMBARDIER 1996 Ski-doo MX Z440 Handbook

SKIS AND RUNNERS

The skis on your Formula are not flat on their bottoms, they are slightly convex. This is done to
improve stability at high speed on straightaways.
, A25GOFS
1. Measure here (Ski runner studs)
A 2 mm (3/32 in)
B. 2 mm (3/32 in)
Check your skis from time to time to confirm the 2 mm (3/32
bow. If the skis have flattened, use a hydraulic press as necessary to restore the original shape.
This is most important for oval racers.
For the racer who encounters deep snow conditions, flotation can be increased and drag de-
creased by installing plastic ski liners onto steel skis, or use the plastic ski assembly (P / N 8606002
00).
Plastic skis or liners are good for a 2 MPH increase in speed in most snow conditions, more in
sticky snow conditions.
Steel skis should be used for ice racing with aggressive carbide, as the plastic ski will flex too
much. These skis should also be reinforced with-a-dditional welding between the upper and lower
sections (see drawing).
1. Weld 1" every 1"
If rules allow it, use aluminum twin track skis (P/N 4840278 00) for ice oval or ice LeMans type
racing.
Section 03 CHASSIS PREPARATION
A B
v
in) (measured at the ski runner studs)
03-77