2019 CLASS STRUCTURE
214.1 KID KARTS
DRIVER REQ: Attained age of 5 through 7
ENGINE: COMER C51 only (See Section 621)
FUEL: Spec Fuel 87 Octane Fuel will be Purchased from WKA
MINIMUM WEIGHT: 150 lbs.
TIRES: Bridgestone YLC – 10 X 4.50 – 33 1/4 max circumference
GEAR RATIO 10/89
OTHER: (1) See Section 900 for chassis and bodywork specifications
214.2 MICRO SWIFT
DRIVER REQ: Age 7 through 10
ENGINE: Parilla Swift with restricted exhaust header as supplied by manufacturer. (with restricted header) See 625.13
CARBURETOR: Tillotson HW-31A
FUEL: Spec Fuel
KART: Cadet or standard kart chassis allowed.
MINIMUM WEIGHT: 225 lbs.
SPEC TIRE: Bridgestone YLC – 10 x 4.50 – 5 front and rear
OTHER: Class runs on same tires both days; new set required at qualifying round on day one. National point champion must move out of class for following years competition.
214.3.1 BRIGGS CADET 206
DRIVER REQ: Age 7 through 12
ENGINE: Briggs LO206 Engine Sealed
EXHHAUST: RLV #5506 or #5507
CARBURETOR: As Supplied by Manufacturer
CARBURETOR ADDITIONAL: Must have Locking Cap #555726
SLIDE: Briggs Green .490 Part Number #555740
FUEL: Spec Fuel 87 Octane WKA will Specify the Location
KART: CADET or standard kart chassis allowed
MINIMUM WEIGHTS: 265 lbs.
SPEC TIRE: Bridgestone YLC – 10 X 4.50 – 5 Front and rear
OTHER: (1) No axle clutches. (2) Class runs on same tires both days;
New set required at qualifying round
214.4 MINI SWIFT SPORTSMAN
DRIVER REQ: Age 8 through 12
ENGINE: Parilla Swift
EXHAUST: Must be stock pipe and exhaust header as supplied by manufacturer
CARBURETOR: Tillotson HW-31A
FUEL: Spec Fuel
KART: Cadet or standard chassis allowed
MINIMUM WEIGHTS: 245 lbs.
SPEC TIRES: Bridgestone YLC – 10 x 4.50 -5 Front and rear
OTHER: (1) No axle clutches. (2) Class runs on same tires both days;
New set required at qualifying round
214.5.1 KA100 JUNIOR
DRIVER REQ: Attained Age 11 through 15
ENGINE: KA100
FUEL: Spec fuel
MINIMUM WEIGHTS: 320 lbs.
EXHAUST: Must be spec exhaust system as supplied by manufacturer with 22mm Restrictor
CARBURETOR: as factory supplied, see 626.4
SPEC TIRE: Bridgestone YLC – 10 X 4.50 -5 front, 11 x 7.10-5 rear
One new set of tires required for qualifying each day
OTHER: In the event that the engine cannot be started on the grid
With the onboard starter, an auxiliary starter may be used.
214.6 IAME JUNIOR
DRIVER REQ: Age 12 through 15
ENGINES: IAME X30
MINIMUM WEIGHTS: 320 lbs.
FUEL: Spec fuel
EXHAUST PIPE/SILENCER: Must be stock pipe and restricted exhaust
Header as supplied by manufacturer for each specific engine. X30
Requires 26mm header.
X30 = 16 ¾” – as measured from the back side of the header flange
Around the right side of the header, connector and pipe to the first
Weld at the end of the divergent cone. Pipe to be measured on the kart
As raced. See Figure 609.9
SPEC TIRE: Bridgestone YNB – 10 X 4.50 -5 front, 11 x 7.10-5 rear
AIRBOX: Required, see section 551
OTHER: In the event that the engine cannot be started on the grid
With the onboard starter, an auxiliary starter may be used. In any case,
The onboard starter is subject to post race tech inspection to ensure
That all components are present and correctly installed. (2) One
new set of tires required each day for qualifying.
214.8 IAME SENIOR
DRIVER REQ: Age 15 and older
ENGINES: IAME X30
MINIMUM WEIGHTS: 360 lbs.
FUEL: Spec fuel
EXHAUST PIPE/SILENCER: Must be stock pipe and restricted exhaust
Header as supplied by manufacturer. The minimum combined length
X30 = 16 ¾” – as measured from the back side of the header flange
Around the right side of the header, connector and pipe to the first
Weld at the end of the divergent cone. Pipe to be measured on the kart
As raced. See Figure 609.1
CARBURETOR: As factory supplied. See figure 610
SPEC TIRE: Bridgestone YNB – 10 X 4.50 -5 front, 11 x 7.10-5 rear
AIRBOX: Required, see section 551
OTHER: In the event that the engine cannot be started on the grid
With the onboard starter, an auxiliary starter may be used. In any case,
The onboard starter is subject to post race tech inspection to ensure
That all components are present and correctly installed. (2) One
new set of tires required each day for qualifying.
214.9 KA100 SENIOR
DRIVER REQUIREMENT: Age 15 and older
ENGINE: IAME KA100
MINIMUM WEIGHT: 360 lbs.
FUEL: Spec Fuel
EXHAUST: Must be spec exhaust system as supplied by manufacturer
CARBURETOR: as factory supplied, see 626.4
SPEC TIRE: Bridgestone YLC – 10 X 4.50 -5 front, 11 x 7.10-5 rear
One new set of tires required for qualifying each day
OTHER: In the event that the engine cannot be started on the grid
With the onboard starter, an auxiliary starter may be used.
