Manco Dingo Go Kart

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Comet Torque Converter Belts

Go Kart Drive Belts - Mini Bike Drive Belts



How to Select the Correct Comet Belt


1. Determine the Series Type: How to Identify Your Torque Converter

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.


30 Series Belts

Asymmetric 3/4" Top Width


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

30 Series Asymmetric

Asymmetric 30 Series 3/4" Top Width Belts


Ignore the Letters A, C or DF Printed on Some Comet Belts, Match the Numbers Only

Part Number

Description

Center Distance

O.C.

Price

Add to Shopping Cart

6" Driven

7" Driven

12-8487

BELT 203589A

6 5/8 to 6 11/16

NO FIT

27.00

24.95


5959

BELT 5959

6-15/16 to 7

NO FIT

27.40

29.95


Custom Belt by Manco/American Sportworks. Fits Model 285,286,485, 606.

12-13053

BELT 203590A

7 1/8 to 7 3/16

6 1/4 to 6 5/16

28.32

26.95


12-10052

BELT 203591A

7 9/16 to 7 5/8

6 13/16 to 6 7/8

29.28

24.95


Comet Belt #203591A is also known as Yerf Dog Belt #Q43203W and Kartco Belt #7655

12-13243

BELT 203592A

8 3/16 to 8 1/4

7 5/16 to 7 3/8

30.25

26.95


12-13050

BELT 203593A

8 11/16 to 8 3/4

7 3/4 to 7 13/16

31.23

26.95


Comet Belt #203593A is also known as Manco Belt #8192 - Fits Manco Model 806B,806-01E & 806U

203594A

BELT 203594A

9 3/16 to 9 1/4

8 5/16 to 8 3/8

32.20

26.95


203595A

BELT 203595A

9 5/8 to 9 11/16

8 3/4 to 8 13/16

33.18

26.95


203596A

BELT 203596A

9 15/16 to 10

9 3/16 to 9 1/4

33.78

26.95


12-10042

BELT 203597A

10 3/4 to 10 13/16

9 13/16 to 9 7/8

35.14

29.95


Comet Belt #203597A is also known as Murray Belt #37 X 98

203598A

BELT 203598A

11 11/16 to 11 3/4

10 15/16 to 11

37.11

29.95


203599A

BELT 203599A

13 1/16 to 13 1/8

12 1/8 to 12 3/16

39.77

32.95



These 30 Series 3/4" top width belts are flat on one side and angled on the other.
The Comet 30 Series has a Green Tension Spring in the driven pulley (rear pulley).


The Letters A, C or DF Printed After the Belt Part Numbers are Not Relevant.
The 20 and 30 Series Driven Pulleys Both have a #20 Stamped in Plain View.
The Number 20 Stamped on the Driven Pulley is NOT a Series Indicator at all.

Yerf-Dog Belt #Q43203W is the same as Belt #203591A

Belt #203591A fits Yerf Dog Go Kart Model:
1400,3002,3200,3202,3203,3203A,3205,30021,30034A,32001,33002,33200


Tips For Proper 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 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" Top Width


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

Cat - 99 Series   A

Asymmetric CAT99 Series 5/8" Top Width Belts


Ignore the Letters A, C or DF Printed on Some Comet Belts, Match the Numbers Only

Part Number

Description

Center Distance

Marked

Price

Add to Shopping Cart

6" Driven

7" Driven

12-13241

BELT 200393A

6 15/16 - 7

NO FIT

993-70

32.95


Comet Part #200393A is also known as Manco Part #1154

200394A

BELT 200394A

7 1/8 to 7 3/16

6 1/4 to 6 5/16

993-75

29.95


200395A

BELT 200395A

7 9/16 to 7 5/8

6 13/16 - 6 7/8

993-80

29.95


200396A

BELT 200396A

8 3/16 to 8 1/4

7 5/16 to 7 3/8

993-85

39.95


200398A

BELT 200398A

9 3/16 to 9 1/4

8 5/16 to 8 3/8

993-95

39.95


These 5/8" top width asymmetric belts are flat on one side and angled on the other.


20 Series Belts

Symmetric 3/4" Top Width


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

Symmetric 20 Series 3/4" Top Width Belts


Ignore the Letters A, C or DF Printed on Some Comet Belts, Match the Numbers Only

Part Number

Description

Center Distance

O.C.

Price

Add to Shopping Cart

6" Driven

7" Driven

12-13048

BELT 203578A

6 15/16 to 7

NO FIT

27.36

26.95


203579A

BELT 203579A

7 1/8 to 7 3/16

6 1/4 to 6 5/16

28.32

26.95


12-13054

BELT 203580A

7 9/16 to 7 5/8

6 13/16 to 6 7/8

29.28

26.95


12-13047

BELT 203581A

8 3/16 to 8 1/4

7 5/16 to 7 3/8

30.2

26.95


Comet Belt #203581A is also known as Carter Brothers Part #G759

12-13242

BELT 203582A

8 11/16 to 8 3/4

7 3/4 to 7 13/16

31.23

26.95


12-13052

BELT 203583A

9 3/16 to 9 1/4

8 5/16 to 8 3/8

32.20

26.95


Comet Belt #203583A is also known as Carter Brothers Part #G776

12-13088

BELT 203584A

9 5/8 to 9 11/16

8 3/4 to 8 13/16

33.18

26.95


12-13059

BELT 203585A

9 15/16 to 10

9 3/16 to 9 1/4

33.78

26.95


12-13058

BELT 203586A

10 3/4 to 10 13/16

9 13/16 to 9 7/8

35.14

26.95


203587A

BELT 203587A

11 11/16 to 11 3/4

10 15/16 to 11

37.11

26.95


203588A

BELT 203588A

13 1/16 to 13 1/8

12 1/8 to 12 3/16

39.77

34.95



These 20 Series 3/4" top width Belts are angled the same on the both sides.
The Comet 20 Series has a Blue Tension Spring in the Driven Pulley (rear pulley).


The Letters A, C or DF Printed After the Belt Part Numbers are Not Relevant.
The 20 and 30 Series Driven Pulleys Both have a #20 Stamped in Plain View.
The Number 20 Stamped on the Driven Pulley is NOT a Series Indicator at all.


40 & 44 Series Belts

Symmetrical 7/8" Top Width


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

If you don't have the proper belt part number, two measurements are required. First, measure the outer diameter of the driven pulley. The 40 Series Driven Pulleys have a 7-1/2" outer diameter. The 44 Series Driven Pulleys have an 8-1/2" outer diameter. Second, measure the distance between the center of the engine crankshaft and the center of the jackshaft. If you look at the belt chart below you'll see that the measurement must be precise. This is the only way to be sure you are selecting the exact belt required for your machine. Use the two measurements to select the proper belt from the chart.

40 Series Belts

Symmetric 40/44 Series 7/8" Top Width Belts


Ignore the Letters A, C or DF Printed on Some Comet Belts, Match the Numbers Only

Part Number

Description

Center Distance

O.C.

Price

Add to Shopping Cart

7-1/2" Driven

8-1/2" Driven

12-13627

BELT 203783A

7 1/4

NO FIT

31.95

36.95


Comet Part #203783A is also known as Manco Part #2433

12-13592

BELT 203784A

7 7/8

NO FIT

32.90

36.95


Comet Part #203784A is also known as Manco Part #6814

12-13057

BELT 203785A

8 3/16

NO FIT

33.87

36.95


Comet Part #203785A is also known as Manco Part #12346

203786A

BELT 203786A

8 5/8

7 5/8

34.83

42.95


203787A

BELT 203787A

9 3/8

8 3/16

35.80

42.95


203788A

BELT 203788A

9 3/4

8 11/16

36.78

42.95


203792A

BELT 203792A

10 1/4

9 3/16

37.75

42.95


203789A

BELT 203789A

10 1/2

9 5/8

38.65

42.95


203790A

BELT 203790A

11 1/2

10 9/16

40.50

42.95


203791A

BELT 203791A

12 5/8

11 11/16

42.66

42.95


204331A

BELT 204331A

13 3/4

12 5/8

44.53

48.95


213295A

BELT 213295A

14 11/32

13 13/32

45.38

48.95


213165A

BELT 213165A

15 3/16

14 7/32

47.50

48.95


These 40/44 Series 7/8" top width symmetric belts are angled the same on the both sides.



500 Series Belts

Symmetrical .920 Top Width

500 Series Belts

Symmetric 500/858 Series .920 Top Width Belts

Part Number

Description

Center Distance

O.C.

Price

Add to Shopping Cart

500 Series

858 Series

300619A

BELT 300619A

7

NO FIT

30.40

52.50


300620A

BELT 300620A

8

NO FIT

32.29

52.50


300621A

BELT 300621A

8 1/2

7 1/2

33.24

52.50


300622A

BELT 300622A

9 1/2

8 1/2

35.16

52.50


300623A

BELT 300623A

10

9

36.13

52.50


300668A

BELT 300668A

15

14

45.91

52.50


These .920 top width belts are angled the same on the both sides.


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 Max Torque Lube (or equivalent) works best.

Factory Authorized Comet Distributor