BRP ski-doo MACH Z 1000 SDI, Руководство пользователя

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07-2
MMC2005-001_07A.FM
SECTION 07 - 2005 MX Z X 440 INFORMATION
2005 MX Z X 440 LC REV
The following areas provide a brief overview and
improvements to the new 440-race sled. For de-
tailed information, you will be instructed to consult
other sections in this manual
ENGINE
The 05 440 MX Z X REV utilizes the 453 engine.
This style of engine has proven itself to be very
reliable, durable, and powerful for sno cross rac-
ing. One important note is the engine requires
104-octane premixed fuel for racing. Operating at
higher altitudes will allow you to use lower octane
fuel. Example: At 6000 ft. you can safely use 100-
octane fuel. The gas to oil mix ratio is 33 to 1, and
must be adhered to or engine damage may occur.
The type of oil recommended is Formula XP-S.
While there is no oil injection system, there is still
a need for lubrication to the water pump shaft at
the center of the crankcase. To provide lubrica-
tion, there is a small oil bottle with a single oil line
that runs down to a fitting on the center of the
crankcase. Make sure the bottle is always at least
half-full using Formula XP-S oil. When the ma-
chine is new, you may have to add oil to the bottle
quite often. This is normal and is due to the sys-
tem "heat purging" all the air out of the oil cavity in
the case. For detailed information regarding spec-
ifications, refer to Section 5 of this manual.
IGNITION SYSTEM
The MX Z X 440 LC REV comes equipped with a
290-watt ignition system. This system is unique
as it contains 3 different and separate programma-
ble timing curves. The three curves are identified
simply as A, B, and C. To best explain the opera-
tion of the 3 curves, let's start with curve C. Curve
C is programmed to create high temperatures in
the exhaust pipe when the Holeshot button is
pushed. The proper operation of the Holeshot but-
ton will be discussed later. Curve B is pro-
grammed for racing, using 104-octane fuel, and
whenever the Holeshot button is NOT pushed, the
engine runs on this curve. Curve A is referred to
as the default curve and is used primarily when
trail riding using 91-octane fuel. To utilize curve A,
you simply disconnect the Holeshot button wires
from the 6-pin connector under the dash. It is im-
portant to note, DO NOT use curves B or C when
using 91-octane fuel or when trail riding, as it may
cause engine damage.
HOLESHOT BUTTON
As stated above, the Holeshot button determines
which ignition curve, B or C, the motor uses.
Again, curve C is used to create high temperatures
in the exhaust pipe for maximum engine horse-
power, and curve B is the race curve. Proper op-
eration of the Holeshot button is as follows; Start
engine, slowly press throttle until 5500 engine
RPM is achieved, press the Holeshot button. Us-
ing the throttle, maintain 5500 RPM or a RPM be-
fore clutch engagement. The longer you are able
to hold the button in, the higher the pipe temper-
ature, and greater your holeshot performance will
be. The rule of thumb is, whenever the sled is not
moving, use the button. Rapid acceleration or de-
celeration of engine RPM with the button pressed
will cause the engine to backfire and may cause
engine damage. Testing the system well before
your first race will allow you to become familiar
with the proper operation and get you in the habit
of using it.
DRIVETRAIN
This is the area where most of the improvements
for this year were made. The clutching system
will use the TRA III drive and TEAM Ind. Twin Trax
driven clutches. After extensive testing, an updat-
ed clutch calibration has been finalized. Refer to
the specification area of this section or Section 11
for setup information. A new drive belt (pt # 417
300 288) has also been added. The biggest im-
provement has been in the chaincase area with a
reinforced chaincase and a new bottom gear. The
bottom gear is a 45 tooth "clutch" design, which
reduces the stress load to the chain, case, and
gears, there by increasing durability.