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Comet Torque Converter Belts

Go Kart Belts - Mini Bike Belts


Go Kart Belt


How to Select the Correct Belt


Go Kart Belt


1. Determine the Series Type.

2. Measure the "Outer Diameter" (O.D.) of the driven pulley on the jackshaft.

3. Measure the "Center Distance" (C.D.); which is the exact distance between the center of the engine crankshaft and the center of the jackshaft. Must be precise.

4. Use the two measurements; the driven pulley outer diameter and center distance measurement to determine the correct belt part number from the relevant chart below. Should your machine's center distance fall between the center distance (C.D.) settings listed here, select from the two belts the one with the larger outside circumference (O.C.) for best wear and to avoid machine "creep" during idling.

Note: The Comet 20 Series and Comet 30 Series Driven Pulleys both have a #20 Stamped on them. Ignore the 20 Stamp completely, it's not a series indicator, it's the degree of the angle of the component.

30 Series Belts

Asymmetric 3/4" Wide


3/4" Top Width, 20 1/2° Asymmetric
(18° + 2 1/2°) - 0.40" Thick - Kevlar

30 Series Asymmetric
Comet 30 Series Belts

Part #

Center Distance

O.C.

Price

Add

6" Pulley

7" Pulley

BELT 203589A
7" OR LESS
NO FIT
27 3/8
22.00

BELT 203590A
7 1/8"
6 1/4"
28 3/8
22.00

BELT 203591A
7 1/2"
6 7/8"
29 1/4
22.00

203591A Same as Yerf Dog Q43203W, Kartco 7655.
BELT 203592A
8 1/4"
7 3/8"
30 1/4
22.00

BELT 203593A
8 5/8"
7 3/4"
31 1/4
22.00

203593A Same as Manco 8192. Fits Model 806.
BELT 203594A
9 1/4"
8 3/8"
32 1/4
22.00

BELT 203595A
9 5/8"
8 3/4"
33 1/4
22.00

BELT 203596A
10"
9 1/4"
33 7/8
22.00

BELT 203597A
10 3/4"
9 7/8"
35 1/4
22.00

203597A Same as Murray 37 x 98
BELT 203598A
11 5/8"
11"
37 1/8
22.00

BELT 203599A
13"
12 1/8"
39 3/4
22.00

Comet 30 Series Parts
3/4" Belts, flat on one side, angled on the other.
30 Series has a Green Tension Spring in the Pulley.
20 and 30 Series Pulleys BOTH have a #20 Stamp.


Comet 203591A Fits Yerf Dog
1400,3002,3200,3202,3203,3203A
3205,30021,30034A,32001,33002,33200

Comet Belt Adjustment

Select belt for the nearest approximate shaft setting. Check belt tension. The belt should be at it's highest point in the driven pulley flanges. Remove the outer half of the driver clutch. Squeeze the belt down and pull it forward as shown. Position the engine so that 1/8" to 3/16" of clearance is provided around the clutch bushing/hub.


CAT99 Series Belts

Asymmetric 5/8" Wide


5/8" Top Width, 20 1/2° Asymmetric
(18° + 2 1/2°) - 0.40" Thick - Kevlar

Cat - 99 Series   A
Comet CAT99 Belts

Part #

Center Distance

O.C.

Price

Add

6" Pulley

7" Pulley

BELT 200393A
7"
NO FIT
27 3/8
26.50

BELT 200394A
7 1/8 to 7 3/16
6 1/4 to 6 5/16
28.32
26.50

BELT 200395A
7 9/16 to 7 5/8
6 13/16 to 6 7/8
29.28
26.50

BELT 200396A
8 3/16 to 8 1/4
7 5/16 to 7 3/8
30.25
26.50

BELT 200398A
9 3/16 to 9 1/4
8 5/16 to 8 3/8
32.23
28.50

200393A is the same as Manco 1154.
5/8" Belts, flat on one side, angled on the other.
Fits Obsolete Comet CAT99 Torque Converters.



20 Series Belts

Symmetric 3/4" Wide


3/4" Top Width, 30° Symmetric
(15° + 15°) - 0.40" Thick - Kevlar

20 Series Belts
Comet 20 Series Belts

SKU

Center Distance

O.C.

Price

Add

6" Pulley

7" Pulley

BELT 203578A
6 5/8 to 6 11/16
NO FIT
27.00
24.50

BELT 203579A
7 1/8 to 7 3/16
6 1/4 to 6 5/16
28.32
24.50

BELT 203580A
7 9/16 to 7 5/8
6 13/16 to 6 7/8
29.28
24.50

BELT 203581A
8 3/16 to 8 1/4
7 5/16 to 7 3/8
30.25
24.50

203581A Same as Carter Brothers G759
BELT 203582A
8 11/16 to 8 3/4
7 3/4 to 7 13/16
31.23
24.50

BELT 203583A
9 3/16 to 9 1/4
8 5/16 to 8 3/8
32.20
24.50

203583A Same as Carter Brothers G776
BELT 203584A
9 5/8 to 9 11/16
8 3/4 to 8 13/16
33.18
24.50

BELT 203585A
9 15/16 to 10
9 3/16 to 9 1/4
33.78
24.50

BELT 203586A
10 3/4 to 10 13/16
9 13/16 to 9 7/8
35.14
24.50

BELT 203586A
10 3/4 to 10 13/16
9 13/16 to 9 7/8
35.14
16.50

BELT 203587A
11 11/16 to 11 3/4
10 15/16 to 11
37.11
26.50

BELT 203588A
13 1/16 to 13 1/8
12 1/8 to 12 3/16
39.77
26.50

Comet 20 Series Parts
3/4" Belts, angled the same on both sides.
20 Series has a Blue Tension Spring in the Pulley.
20 and 30 Series Pulleys BOTH have a #20 Stamp.



TC88 Series Belts

Symmetric 5/8" Wide


5/8" Top Width, 30° Symmetric
(15° + 15°) - 0.40" Thick - Kevlar

TC88 Belts
Comet TC88 Belts

SKU

Center Distance

O.C.

Price

Add

6" Pulley

7" Pulley

BELT 200419A
6 5/8 to 6 11/16
NO FIT
27.00
26.50

BELT 200420A
7 1/8 to 7 3/16
6 1/4 TO 6 5/16
28.32
26.50

BELT 200421A
7 9/16 to 7 5/8
6 13/16 to 6 7/8
29.28
26.50

BELT 200422A
8 3/16 to 8 1/4
7 5/16 to 7 3/8
30.25
26.50

BELT 200423A
8 11/16 to 8 3/4
7 3/4 to 7 13/16
31.23
29.50

BELT 200424A
9 3/16 to 9 1/4
8 5/16 to 8 3/8
32.20
29.50

5/8" Belts, angled the same on both sides.
Fits Obsolete Comet TC88 Torque Converters.



40 and 44 Series

Symmetric 7/8" Wide


7/8" Top Width, 30° Symmetric
(15° + 15°) - 0.45" Thick - Kevlar

40 Series Belts
Comet 40 and 44 Series Belts

Part #

Center Distance

O.C.

Price

Add

7-1/2" Pulley

8-1/2" Pulley

BELT 203783A
7 1/4
NO FIT
31.95
36.50

203783A Same as Manco 2433
BELT 203784A
7 7/8
NO FIT
32.90
36.50

203784A Same as Manco 6814
BELT 203785A
8 3/16
NO FIT
33.87
36.50

203785A Same as Manco 12346
BELT 203786A
8 5/8
7 5/8
34.83
38.50

BELT 203787A
9 3/8
8 3/16
35.80
38.50

BELT 203788A
9 3/4
8 11/16
36.78
38.50

BELT 203792A
10 1/8
9 3/16
37.75
39.50

BELT 203789A
10 1/2
9 5/8
38.65
39.50

BELT 203790A
11 1/2
10 9/16
40.50
39.50

BELT 203791A
12 5/8
11 11/16
42.66
39.50

BELT 204331A
13 3/4
12 5/8
44.53
39.50

BELT 213295A
14-11/32
13-13/32
45.38
39.50

BELT 213165A
15 3/16
14 7/32
47.50
39.50

Comet 40 and 44 Series Parts
7/8" Belts, angled the same on both sides.
Comet 40 Series Driven Pulleys are 7-1/2" O.D.
Comet 44 Magnum Driven Pulleys are 8-1/2" O.D.



500 Series Belts

Symmetrical .920 Wide


.920 Top Width, 30° Symmetric
(15° + 15°) - 0.45" Thick - Kevlar

500 Series Belts
Comet 500 Series Belts

Part #

Center Distance

O.C.

Price

Add

7-1/2" Pulley

8-1/2" Pulley

BELT 300619A
7"
NO FIT
30.40
36.50

BELT 300620A
8"
NO FIT
32.29
36.50

BELT 300621A
8-1/2"
7-1/2"
33.24
36.50

BELT 300622A
9 1/2"
8 1/2"
35.16
36.50

BELT 300623A
10"
9"
36.13
36.50

BELT 300668A
15"
14"
45.91
36.50

Genuine OEM Comet Factory Belts
Comet 500 Series Clutches and Pulleys


Comet belts are not elastic and should not be viewed as a rubber band. With the sophistication of drive belts and drive systems found in today's machines, the drive belt can do much damage to the entire system if the proper belt is not used or if the drive system is not properly aligned and adjusted. In earlier years, the drive system was considered a part of the machine that merely blew alot of belts. Many belts then were of the variety that if the drive system was not properly aligned and adjusted the belt would stretch and in most cases disintegrate before doing much damage to the clutch or driven unit. Today, however, emphasize belt and drive systems have attained such sophistication that if the drive system is not properly aligned or adjusted, or if the wrong belt is used, the belt may tear up the drive system before stretching or breaking. For that reason alone, and to eliminate the expense, trouble and possible safety hazard of blown belts or damaged clutches, the drive system on your vehicle should be given extra care to be sure it's operating properly. Basic guidelines are that the belt be checked periodically for uneven wear. If any irregularities appear in the system or on the belt, have the system adjusted immediately.

Check to make sure all of the black plastic cam buttons in the driven pulley are in place. Do not run the system if any of the buttons are missing. Missing buttons will allow the driven pulley to open too far allowing the belt to fall down into an area of the pulley where rivets are present. These rivets will destroy the belt. The buttons also keep the movable sheave from spinning, they reduce friction between the cam and the movable sheave and they prevent metal to metal contact thus acting as shock absorbers. The buttons play a very important role in the performance of a torque converter system. If you do have to replace buttons, glue the buttons into place with contact cement or a similar product.

If your system is "eating belts" do not install a new belt until the problem has been corrected. A destroyed belt is the symptom of another problem.

Erratic engagement is most often caused by the driver clutch that is mounted on the engine crankshaft. The flyweights in the clutch are sticking or the movable sheave is binding on the hub. Knowing how they work may help you determine why yours doesn't. As engine rpm increases, the flyweights push against the outer drum and force the movable sheave (pulley face) toward the engine causing the belt to travel at a greater circumference around the driver clutch. This action in turn causes the belt to force open the driven pulley, allowing the belt to travel at a lesser circumference around the driven pulley.

As engine rpm decreases, the spring in the driven pulley closes the pulley forcing the belt to a greater circumference. This action overcomes the force of the flyweights against the movable sheave and causes the driver clutch pulley to open, allowing the belt to travel a lesser circumference around the driver clutch.

When the engine is at idle, the driver clutch pulley should not engage the sides of the belt. The belt should be loose in the pulley and resting on the bronze bushing around the hub. The bronze bushing serves to protect the belt from rubbing against the spinning hub at idle and also to support a portion of the movable sheave as the sheave moves toward the engine during engagement.

The movable sheave must be able to slide freely on the splined hub without binding. Disassemble the driver clutch and clean away any dirt or lubricant residue using an automotive parts cleaning solvent. Do not use a petroleum based lubricant inside the driver clutch or between the hub and movable sheave. Use a dry, molybdenum based lubricant. The extreme heat and pressure inside the driver clutch chars most petroleum based lubricants. Petroleum based lube also collects dirt which causes increased wear. Graphite lube is better than petroleum lube, but it also eventually leaves a residue that builds up on the parts, causing them to bind and require more frequent cleaning. Experience has taught us that Comet Spray Lube works best.

Factory Authorized Comet Distributor