High-Altitude Kits
NOTE:
Following conversion with one of these kits, the original main jet should be retained for possible future use.
If the engine is ever to be operated below the altitude specified for the new jet, the carburetor must be reconverted back to the original jet size, or overheating and internal engine damage can occur.
*altitudes are given in feet. 1,000 feet = 304.8 meters
**not emission certified
Model CS4 |
A/C Style Standard |
Altitude* 4-8,000 |
Kit No. 63 755 20-S |
Altitude* 8,000+ |
Kit No. 63 755 22-S |
CS4 |
Heavy Duty |
4-8,000 |
63 755 22-S |
8,000+ |
63 755 25-S |
CS6 |
Standard |
4-8,000 |
63 755 21-S |
8,000+ |
63 755 24-S |
CS6 |
Heavy Duty |
4-8,000 |
63 755 23-S |
8,000+ |
63 755 26-S |
CS6 |
Rectangular |
4-8,000 |
63 755 24-S |
8,000+ |
63 755 38-S |
CS8.5 (250 cc) |
Standard |
4-8,000 |
63 755 27-S |
8,000+ |
63 755 29-S |
CS8.5 (250 cc) |
Heavy Duty |
4-8,000 |
63 755 28-S |
8,000+ |
63 755 27-S |
CS8.5 (300 cc) |
Standard |
4-8,000 |
Not Available |
8,000+ |
Not Available |
CS8.5 (300 cc) |
Heavy Duty |
4-8,000 |
Not Available |
8,000+ |
Not Available |
CS10 (9315 series) |
Standard |
4-8,000 |
63 755 31-S |
8,000+ |
63 755 30-S |
CS10 (9315 series) |
Heavy Duty |
4-8,000 |
63 755 33-S |
8,000+ |
63 755 36-S |
CS10 (9316 series) |
Standard |
4-8,000 |
63 755 30-S |
8,000+ |
63 755 35-S |
CS10 (9316 series) |
Heavy Duty |
4-8,000 |
63 755 33-S |
8,000+ |
63 755 36-S |
CS12 (9415 series) |
Standard |
4-8,000 |
63 755 32-S |
8,000+ |
63 755 34-S |
CS12 (9415 series) |
Heavy Duty |
4-8,000 |
63 755 30-S |
8,000+ |
63 755 37-S |
CS12 (9415 series) |
Rectangular |
4-8,000 |
63 755 31-S |
8,000+ |
63 755 36-S |
CS12 (9416 series) |
Standard |
4-8,000 |
63 755 32-S |
8,000+ |
63 755 34-S |
CS12 (9416 series) |
Heavy Duty |
4-8,000 |
63 755 30-S |
8,000+ |
63 755 37-S
|
Model CH/CV11-16, |
Carb. No. 12 053 10** |
Carb. Mfg. Walbro |
A/C Style Standard |
Altitude* 5-10,000 |
Kit No. 12 755 68-S |
CV490-492 |
12 053 11 12 053 13** |
Walbro Walbro |
Standard Standard |
5-10,000 5-10,000 |
12 755 68-S 12 755 68-S |
|
12 053 16** 12 053 21** |
Walbro Walbro |
Standard Standard |
5-10,000 5-10,000 |
12 755 68-S 12 755 68-S |
|
12 053 22 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 23 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 25 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 26 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 27 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 28 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 29** 12 053 30** |
Walbro Walbro |
Standard Standard |
5-10,000 5-10,000 |
12 755 68-S 12 755 68-S |
|
12 053 32 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 39 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 40 |
Walbro |
Standard |
5-10,000 |
12 755 68-S |
|
12 053 77 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 78 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 80 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 82 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 93 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 94 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
12 053 95 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
|
42 053 03 |
Walbro |
Standard |
5-10,000 |
12 755 92-S |
SV470, 480 |
ALL |
Walbro |
Standard |
5-10,000 |
20 755 08-S |
SV470, 480 |
ALL |
Walbro |
Standard |
10,000+ |
20 755 09-S |
SV530-600 |
ALL |
Walbro |
Standard |
5-10,000 |
20 755 06-S |
SV530-600 |
ALL |
Walbro |
Standard |
10,000+ |
20 755 07-S |
CH18-22 (624 cc) |
24 053 31 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 32 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 33 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 43 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 75 |
Keihin |
Standard |
5-10,000 |
24 755 131-S |
CH22, 23 (674 cc) |
24 053 58 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 59 |
Keihin |
Standard |
5-10,000 |
24 755 125-S |
|
24 053 86 |
Keihin |
Standard |
5-10,000 |
24 755 131-S |
CH25 |
24 053 34 |
Keihin |
Standard |
5-10,000 |
24 755 130-S |
|
24 053 47 |
Keihin |
Standard |
5-10,000 |
24 755 126-S |
|
24 053 75 |
Keihin |
Standard |
5-10,000 |
24 755 131-S |
|
24 053 86 |
Keihin |
Standard |
5-10,000 |
24 755 131-S |
CH730, 740 |
24 053 93 |
Keihin |
Heavy Duty |
5-10,000 |
24 755 138-S |
|
24 053 93 |
Keihin |
Heavy Duty |
10,000+ |
24 755 137-S |