Kart Racing Series Classes

THIS PAGE IS CURRENTLY UNDERGOING REVISIONS !

WKA rules will be adhered to except for Rotax classes.

All classes will have an OPEN wet tire compound, with the exception of Rotax Max Challenge classes.


 

AMP 2 CYCLE KART CLASSES:

The kart weights are under review currently to bring them in line with sanctioned bodies..

Rotax Classes: 
Age CLASS & ENGINE TIRES WEIGHT
W/Driver
7 -10 Micro Max Mojo D1 235
9 - 12 Mini Max Mojo D1 265
13 - 16 Junior Max Mojo D1 320
15 & up Senior Max Mojo D2 365
32 & up Master Mojo D2 405
15 & up DD-2 Mojo D3 385
32 & up DD-2 Master Mojo D3
32 & up DD-2 Master "
397
397

For current Rotax rules & tire information, please read: 
USRMC Technical Regulations 2.26.14
2014 USRMC National Structure
USRMC Technical Regulations 2.26.14 (Micro and Mini)

 

AGES 5 - 8  
KART CLASS ENGINE TIRES WEIGHT
W/Driver
Kid Kart 50cc Comer C50 Open Compound
4.5/4.5
150 lbs.
Fuel - must be purchased from AMP recreational 90 only. No other additives or fuels allowed. Any oil mix ratio allowed but no additives at all other than oil. No race fuels such as Sunco or VP Racing allowed.

 

AGES 7 - 12 
KART CLASS ENGINE TIRES EXHAUST WEIGHT
W/Driver
Cadet 80cc
Comer K80
Hoosier MMX-A or
Mojo D1
4.50/4.50
 As supplied w/engine 235 lbs.
Yamaha Sportsman 100cc
Yamaha KT 100
Hoosier MMX-A or
Mojo D1
4.50/4.50
 RLV YBX
(3 hole can)
255 lbs.
Fuel - Sonoco Pump 93 or Sonoco 260 GTX with only 2 stroke fuel oil added

 

AGES 12 - 15
KART CLASS ENGINE TIRES EXHAUST WEIGHT
W/Driver
Yamaha
Jr. Can
100cc
Yamaha KT 100
Hoosier MMX-A or
Mojo D1
4.60/6.00
 RLV SSX-V #7548 (4 hole can) 320 lbs.
KPV Jr. Karters are welcome and Race with Yamaha... 
  Optional TaG Engines      
TaG* Jr. X30 Hoosier MMX-A or
Mojo D1
4.60/7.10
Header 31mm 320 lbs. & see additional info below*
" Leopard "  Header 28mm "
" Rotax "  Junior Header "
Fuel - Sonoco Pump 93 or Sonoco 260 GTX with only 2 stroke fuel oil added

*Add 20 lbs for front wheel brake karts
*WEIGHTS SUBJECT TO CHANGE AT PROMOTER'S DISCRETION

AGES 15+
KART CLASS ENGINE TIRES  EXHAUST WEIGHT
W/Driver
Yamaha Senior
100cc
Yamaha KT 100
Only heads with OEM casting "Yamaha" and cylinders with Y3 or Y4 and 787 are legal
Hoosier MMX-A or
Mojo D2
4.60/7.10
SR-Y Pipe and RLV 9110 Header 1.750" connector tube- 9.5" from piston to end of connector tube Senior - 345 lbs
Yamaha Sr. - Heavy " " " 360 lbs.
KPV Sr. Karters are welcome and Race with Yamaha...
TaG Sr & Masters* Optional TaG Engines TIRES   WEIGHT
W/Driver
" X30 Hoosier MMX-A or
Mojo D2
4.60/7.10
  See below*
" Leopard "   "
" Rotax "   "
" PRD "   "
" Rok TT "   "
 TaG Engines Junior Weight & Header Senior Weight  Masters Weight
 X30 320 lbs - 31mm  365  385
 Leopard 320 lbs - 28mm 365  385
 Rotax 320 lbs - Junior  365  385
 PRD NA  335 355
 Rok TT NA  385  405
Fuel - Sonoco Pump 93 or Sonoco 260 GTX with only 2 stroke fuel oil added

 *WEIGHTS SUBJECT TO CHANGE AT PROMOTER'S  DISCRETION.
TAG Masters Rules:  DRIVER AGE: 30+  OR 21+ years old and 220 lbs with driving gear.

AGES 15+
KART CLASS OPTIONAL SHIFTER ENGINES TIRES WEIGHT
W/Driver
Open Shifter X30 shifter Hoosier MMX-A or
Mojo D3
4.60/7.10
390 lbs.
" ICC/KZ " 415 lbs.
" Moto " 415 lbs.
" Stock Moto " 400 lbs.
Fuel - Open

All Weights include kart & driver after session.

Weight will be monitored and could be adjusted, based on performance.
Leopard and Rok minimum pipe length per WKA rule book.

* TaG - Touch and Go electric start

 


 

AMP 4 CYCLE KART CLASSES:

For all Briggs L0206 class specifications, please Click Here...

Fuel for all 4 cycle classes, 90 Octane purchased at AMP, no additives allowed.

Tires - Hoosier MMX-A or Bridgestone YLC

 

AGES 5 - 8
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
LO206 Kid Kart (WKA Sec 709) Briggs & Stratton Animal LO206 Kid Kart Package 4.50/5” front & rear.. max rear circumference 33.75 200 lbs.
ADDITIONAL SPECIFICATIONS
Clutch: Spec LO206 Kid Kart Package Clutch - No modifications
Spec Gear: 17 tooth front, 57 tooth rear - #35 chain
Chassis: Full size sprint, cadet, or kid kart chassis – Specifications per WKA 201.1 – 201.12 and/or 251.1 – 251.12. Kid Karts per WKA 902.4 – 902.8.

 

AGES 5 - 8
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
Puffo Kid Kart Puffo Honda 39cc 4.50/5” front & rear 150 lbs.
ADDITIONAL SPECIFICATIONS
Clutch: Spec Puffo Clutch - No modifications
Chassis: kid kart chassis – Kid Karts per WKA 902.4 – 902.8.

 

AGES 5 - 8
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
Kid Clone Clone 4.50/5” front & rear..
Maximum wheel width: 6.5” front & rear (7” no go)
200 lbs.
ADDITIONAL SPECIFICATIONS
Clutch: Drum style clutch only – No disc clutches
Maximum wheel width: 6.5” front & rear (7” no go)
Restrictor plate: ARC .375 (RED) restrictor plate – one gasket on each side of plate
Air Filter: Aftermarket air filters are allowed. Maximum length of adapter – 1.375”
Header: Single stage, .75” Max OD, .635” Max ID. Maximum length of header and muffler is 15” and minimum is 10”.
Muffler: RLV Mini 91 with threaded nipple. Must be threaded on end of header and removable.
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258 (Sportsman 1 apply)
Chassis: Full size sprint, cadet, or kid kart chassis

 

AGES 7-12
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
4-cycle Sportsman  aka
Cadet Clone
Clone: Purple Restrictor Plate - .500" - Small header/muffler
Animal Pro Gas: (WKA Sec 705) Green Restrictor Plate – 0.475” - Pro Gas Spec header
Front and rear 4.50 x 5” or optional 6.00 x 5" rear 265 lbs.
ADDITIONAL SPECIFICATIONS
Clutch: Clone - Drum only, no disc : Animal - Open clutch (no axle clutches)

 

AGES 12-15
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
4-cycle Junior Clone: No restrictor plate - Small header/muffler
Animal Pro Gas: (WKA Sec 705) Orange Restrictor Plate - 0.620" - Pro Gas Spec header
Front 4.50 x 5” or
Rear 6.00 x 5"
Clone - 290 lbs.
Pro Gas Animal - 320 lbs.
ADDITIONAL SPECIFICATIONS
Clutch: Clone - Drum only, no disc : Animal - Open clutch (no axle clutches)

 

AGES 15 years & up
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
Clone Senior Clone 4.50/5” front & 7.10/5” rear 340 lbs. with header/muffler option 1

OR
375 lbs. with header/muffler option 2

(Above two options will raced and scored as one class)

ADDITIONAL SPECIFICATIONS
Clutch: Open Dry Clutch – No Axle Clutches
Maximum wheel width: 6.5” (7” no go) front - 9.25” (9.75” no go) rear
Air Filter: Aftermarket air filters allowed. Maximum length of adapter – 1.375”
Header:
Option 1 (340#): Single stage, .75” Max OD, .635” Max ID. Maximum length of header and muffler is 15” and minimum is 10”.
Option 2 (375#): Must be double nutted – bracing and header wrap highly recommended. May not protrude into exhaust port.
Muffler:
Option 1 (340#): RLV Mini 91 with threaded nipple. Must be threaded on end of header and removable.
Option 2 (375#): RLV 4100, 4102, or 4104 - .1285 no go on baffle holes. No coatings allowed on muffler. Must be removable.
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258
Chassis: Full size sprint chassis – Specifications per WKA 201.1 – 201.12 and/or 251.1 – 251.12.

 

AGES 15 years & up
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
Clone Senior Sportsman
 
Clone 4.50/5” front & 7.10/5” rear (1) 360 lbs. with header/muffler option 1

OR
(2) 400 lbs. with header/muffler option 2 - with a maximum kart weight of 200 lbs.
 (Above two options will raced and scored as one class)

ADDITIONAL SPECIFICATIONS
Clutch: Drum style clutch only – No disc clutches
Maximum wheel width: Open for competitiors first two events, then: 6.5” (7” no go) front - 9.25” (9.75” no go) rear
Air Filter: Aftermarket air filters allowed. Maximum length of adapter – 1.375”
Header:
Option 1 (360#): Single stage, .75” Max OD, .635” Max ID. Maximum length of header and muffler is 15” and minimum is 10”.
Option 2 (400#): Must be double nutted – bracing and header wrap highly recommended. May not protrude into exhaust port.
Muffler:
Option 1 (360#): RLV Mini 91 with threaded nipple. Must be threaded on end of header and removable.
Option 2 (400#): RLV 4100, 4102, or 4104 - .1285 no go on baffle holes. No coatings allowed on muffler. Must be removable.
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258
Chassis: Full size sprint chassis – Specifications per WKA 201.1 – 201.12 and/or 251.1 – 251.12.
Eligibility: The Sportsman class is intended to be an entry level class or for drivers not wishing to compete at the more competitive senior level. Competitors who win 4 races in a season and/or a season points championship shall not be eligible to compete in this Senior Sportsman class in subsequent years.

 

AGES 15 years & up
KART
CLASS
ENGINE TIRES WEIGHT
W/Driver
Briggs L0206 Senior
Light/Heavy
 
Briggs L0206 4.50/5” front & 7.10/5” rear Light - 330 lbs
Heavy - 360 lbs
ADDITIONAL SPECIFICATIONS
See Per Briggs LO206 PDF rulebook
Clutch: Drum style clutch only – No disc clutches
Exhaust: RLV 4110
Bodywork: CIK style per WKA section 208 – 4 cycle style per WKA section 258
Chassis: Full size sprint chassis – Specifications per WKA 201.1 – 201.12 and/or 251.1 – 251.12.

 

Weights includes kart & driver after session.

Please Email us Or Call us at 678-381-8527 for additional information...