Order Toll Free: 1-(888)-926-6554 My Account: Log In

0 item(s) in cart/ total: $0 view cart
  • BMI on Facebook
  • About BMI Karts & Supplies
  • BMI Karts & Supplies is proud to be the internet leader for factory direct go kart parts and accessories. Visit our online catalog for go cart and racing kart parts, kits, frames and more. We carry all the top manufactures (Azusa, MCP, Briggs, Dynocam, Comet) for everything a gokart needs from axles, wheel and brake assemblies.

    Need a drive chain, gokart clutch or drive sprockets? We carry a huge inventory of go kart parts and accessories, clutches, belts and repair parts.

  • Get Email Deals
  • Be the first to hear about new and exciting products, special pricing and incredible deals!

Home>Torque Converters

Comet 20 Series Driver Unit

Part Number: 219559
review 0 Review(s)
0
Comet 20 Series Driver Unit
Description
Comet 20 Series Driver Clutch Unit
  • Bore Size: 3/4" (3/16" key) or 1" (1/4" key)
  • Belt: 3/4" Top Width Symmetrical Belt
  • Diameter: 4-19/32" OD
  • Rated up to 8HP
  • Engagement: 1200 - 3100 RPM 
20 Series 3/4" Bore - Part #219559
20 Series 1" Bore - Part #219560
Price
Comet 20 Series Driver Unit
Availability:
In Stock
Your Price:
$75.00
Choose Options
Bore Size
Quantity

Location: 200-07

How do I adjust a 20 Series Clutch?

Tips for proper belt adjustment. Belt should be at its highest point in the driven pulley flanges. Remove the outer half of the driver clutch. Squeeze the belt down and pull forward. Position the engine so that 1/8" to 3/16" of clearance is provided around the clutch bushing/hub. WARNING! Do NOT run with a tight belt.

Tips for adjusting the spring tension of the driven unit. By increasing the spring tension of the torque sensing system (the driven clutch), the power ratio of the system (driver and driven) can be held longer at high engine rpms before it is overcome by the clutch driver.

To shorten the time required for the driven member to attain it's speed ratio, decrease the amount of spring tension of the torque sensing cams. This will allow the rpm of the drive clutch to overcome the power ratio of the driven unit at a faster rate in a lower rpm range.

Comet 20 Series Torque Converter System:

Is for 2 or 4 cycle engines up thru 8 hp. The model 20 uses a 3/4" top width symmetric belt. Drive clutches are available for both 3/4" and 1" bore (with 3/16-1/4 keyway). Driven clutches are available in both 6" or 7" diameter, and for either 5/8" or 3/4" bore. Comet 20 series is for application of low speed, added power requirements such as tractor mowers, off the road boonie bikes, four wheelers, go karts, mini bikes, etc. With the 6" driven clutch the low speed drive ratio is 2.68 and the high speed drive ratio is 1.15. With the 7" driven clutch the low speed drive ratio is 3.13 and the high speed drive ratio is 1.40.

 

Related Items
Comet Bushing for 20, 30 series & TAV Driven
Comet Bushing for 20, 30 series & TAV Driven
Average Rating 0 Review(s)
Your Price: $5.50
Torque Converter Backplate & Jackshaft
Torque Converter Backplate & Jackshaft
Average Rating 0 Review(s)
Your Price: $64.95
Torque Converter Cover
Torque Converter Cover
Average Rating 0 Review(s)
Your Price: $15.00
Recently Viewed Items
Browse Similar Items