81
SPECIFICATIONS
The carburetor jetting chart above is consistent with the provisions of U.S.A.
federal regulation 40 CFR 1051.115(d)(3) and is an acceptable alternative to the
use of tamper-resistant features.
Carburetor Jetting
AMBIENT TEMPERATURE
ALTITUDE
Meters
(Feet)
°F:
Below
-25
-30 to -10
-15 to +5
0 to +20
+15 to +35 +30 to +50 +45 to +65
Above
+60
°C:
Below
-31
-34 to -23 -26 to -15
-18 to -7
-9 to +2
-1 to +10
+7 to +18
Above
+16
*Shaded cells indicate factory settings.
0-600
(0-2000)
Main Jet
72.5
72.5
70
70
70
67.5
67.5
67.5
Pilot Jet
55
55
50
50
50
50
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
600-1200
(2000-4000)
Main Jet
70
70
70
67.5
67.5
67.5
65
65
Pilot Jet
50
50
50
50
50
50
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1200-1800
(4000-6000)
Main Jet
67.5
67.5
67.5
65
65
65
62.5
62.5
Pilot Jet
50
50
50
50
50
45
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1800-2400
(6000-8000)
Main Jet
65
65
65
65
65
62.5
62.5
60
Pilot Jet
50
50
50
50
45
45
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
2400-3000
(8000-
10000)
Main Jet
65
65
62.5
62.5
60
60
60
60
Pilot Jet
50
50
50
45
45
45
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
3000-3700
(10000-
12000)
Main Jet
62.5
62.5
60
60
60
57.5
57.5
57.5
Pilot Jet
50
50
45
45
45
45
45
45
Clip Position
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Clutching
ALTITUDE
Meters
(Feet)
Drive Clutch
Shift Weight
Drive Clutch
Spring
Driven
Clutch
Spring
Driven
Helix
Chaincase
Gearing/
Pitch
*Shaded cells indicate factory settings.
0-900
(0-3000)
N/A
GREEN
(120 PRO X)
(7042118)
N/A
N/A
10-42
74P #40
900-1800
(3000-6000)
N/A
GREEN
(120 PRO X)
(7042118)
N/A
N/A
10-42
74P #40
1800-2700
(6000-9000)
2700-3700
(9000-12000)
