Front Sprocket
Rear
Sprocket
Gear Ratio
15
33
2.20
15
34
2.27
15
35
2.33
14
33
2.36
15
36
2.40
14
34
2.43
15
37
2.47
14
35
2.50
15
38
2.53
13
33
2.54
14
36
2.57
15
39
2.60
13
34
2.62
14
37
2.64
15
40
2.67
13
35
2.69
14
stock
38
2.71
15
41
2.73
13
36
2.77
14
39
2.79
15
42
2.80
13
37
2.85
14
40
2.86
13
38
2.92
14
41
2.93
13
39
3.00
14
42
3.00
13
40
3.08
13
41
3.15
13
42
3.23
Ratio Write © Cobra R&D
2004
Carburetion
Although your Cobra is sent from the factory with the carburetor jetted for optimal
performance, you may find it necessary to adjustment your particular jetting due
to current weather conditions, altitude, fuel variations, and/or engine
modifications.
CAUTION:
Proper jetting is very
important for engine performance and engine life.
63
Summary of Contents for 2008 ECX50
Page 1: ......
