BRP ski-doo MACH Z 1000 SDI, Руководство пользователя

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SECTION 05 - ENGINE PREPARATION
MMC2005-001_05A.FM
05-11
CARBURETION
Carburetor Main Jet Correction Chart
NOTE: When the answer gives an unavailable jet
size, select the next highest (richer) jet.
Example:
With a 250 stock main jet, at an altitude of a 600 m
(2000 ft) and a temperature of - 5°C (20°F):
= 227; use 230 jet.
CAUTION: These values are guidelines only.
Specific values/adjustments vary with temper-
ature, altitude and snow conditions. Always
observe spark plug condition for proper jetting.
This table is more than adequate for stock en-
gines. Two-stroke engines with high specific out-
puts that are heavily modified (twin pipes, high
compression, large carburetors, etc.) and perform-
ing at high RPM are very sensitive to air density
changes. The following is a very accurate formula
for correcting jetting.
First, a baseline for jetting must be established.
BASE GASKETS
453 P/N 420 931 580 0.3 mm
P/N 420 931 581 0.4 mm
P/N 420 931 583 0.5 mm
P/N 420 931 582 0.6 mm
P/N 420 931 584 0.8 mm
493 P/N 420 931 588 0.5 mm
P/N 420 931 589 0.8 mm
P/N 420 931 960 0.7 mm
P/N 420 931 587 0.6 mm
593 P/N 420 931 582 0.6 mm
P/N 420 931 962 0.7 mm
P/N 420 931 583 0.5 mm
P/N 420 931 584 0.8 mm
693 P/N 420 931 892 0.6 mm
P/N 420 931 893 0.5 mm
P/N 420 931 894 0.7 mm
P/N 420 931 895 0.8 mm
793 P/N 420 931 838 0.5 mm
P/N 420 931 837 0.6 mm
P/N 420 931 964 0.7 mm
P/N 420 931 839 0.8 mm
CARBURETOR MAIN JET CORRECTION CHART
FT/METER
- 60/
- 50
°F/°C
- 40/
- 40
- 20/
- 30
- 0/
- 20
+ 20/
- 5
+ 40/
- 5
+ 60/
- 15
+ 80/
- 25
0
2000/
600
4000/
1200
6000/
1800
8000/
2400
1000/
3000
111.10 107.40 103.70
%
100.00
96.30 92.60 88.90 85.20
105.77 102.07 98.37 94.67 90.97 87.27 83.57 79.87
100.43 96.73 93.03 89.33 85.63 81.93 78.23 74.53
95.10 91.40 87.70 84.00 80.30 76.60 72.90 69.20
89.7 86.07 82.37 78.67 74.97 71.27 67.57 63.27
84.44 80.74 77.04 73.34 69.64 65.94 62.24 58.54
A01C47A
250 x
90.97
100
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