2-Cycle Classes

IVKC 2017 2-Cycle Classes

*WKA Engine and Muffler Tech Spec’s will be used for any/all Stock Classes and where “Section” is called out

50cc Kids Kart*..

DRIVER REQ: Attained age of 5 through 7
ENGINE:
Comer C50 or C51 (See Section 621)
FUEL:
Gas and Oil only, absolutely no fuel additives allowed.   
MINIMUM WEIGHT:
150 lbs.
TIRES:
10 x 4.50 – 5  front and rear …. 33” max circumference. GEAR RATIO: 10/89…

Note:  If there is a large number of entries, we will try and separate the class into a More and a Less experienced drivers group or by qualifying times or Parent agreement

 

Yamaha Sportsman* ..

DRIVER REQ: Attained age 7 through 12.
ENGINE:
Yamaha KT100, ARC or Comer K-80
EXHAUST:
RLV SSX-V #754.. See Section 554.3 and Figure 554.3)
CARBURETOR:
– Walbro WA55B with WA55B manifold (See Sections 601.6 and 601.7);     OR – WB-3A carb with Red Horstman restrictor plate allowed.  Plate must be installed between the cylinder and carb adapter spacer. FUEL: Gas and Oil only, absolutely no fuel additives allowed. …

MINIMUM WEIGHT:  Yamaha:  235 lbs.  Comer K-80 225 lbs
SPEC TIRE: 10 x 4.50 – 5 Front and rear.
KART: Cadet or standard kart chassis allowed.
Gear Ratio 5.30 Min., NO Max

 

Mini Swift*..

DRIVER REQ: Attained age of 7 through 10.
ENGINE: Parilla Swift with restricted exhaust header see Section 625/625.13
EXHAUST: Must be stock pipe and exhaust header as supplied by manufacturer (with restricted header)
CARBURETOR: Tillotson HW-31A
FUEL: Gas and Oil only
KART: Cadet or standard kart chassis allowed.
MINIMUM WEIGHT: 225 lbs.
SPEC TIRE: 10 x 4.50 – 5 front and rear.

 

Pro Swift*…

DRIVER REQ: Attained age 8 through 12.
ENGINE:
Parilla Swift
EXHAUST:
Must be stock pipe and exhaust header as supplied by manufacturer.
CARBURETOR:
Tillotson HW-31A … FUEL: Gas and Oil only, absolutely no fuel additives allowed.
KART:
Cadet or standard kart chassis allowed.
MINIMUM WEIGHTS: 
245 lbs.SPEC TIRE: 10 x 4.50 – 5 Front and rear.
OTHER:
(1) Gear Ratio 5.30 Min., NO Max.

 

Yamaha Junior*…

DRIVER REQ: Attained age 12 through 15
ENGINE: Yamaha KT100, ARC…
FUEL: Gas and Oil fuel, absolutely no fuel additives allowed.
MINIMUM WEIGHTS: Yamaha 310 lbs.
EXHAUST: RLV SSX-V #7548. (See Section 554.3 and Figure. 554.3)
SPEC TIRES: 10 x 4.50-5 front, 11 x 7.10-5 rear.

 

Open/Classic Open..

Age: 15 min, Maximum kart width 50”any pipe and any Clutch and chain. 100cc Kart engines, any carb, open fuel, open modifications, Weight’s: Piston Port 345lbs, Reed Valve 355lbs, Rotary Valve 365lbs

 

Classic Piston Port*..

Age minimum 14 years – American Chassis Only to 1999, 1” or 1¼” axle … Absolutely No bodywork, maximum kart width 50”, any pipe, Engine Oil Clutch’s mandatory. 219 chain allowed. Classic Piston Port engines only . Yamaha, ARC, BT-82, PCR PP100, DAP T-50… VKA Rules…. Walbro WB 3 carb with .940” Venturi, Gas and Oil fuel, absolutely no fuel additives allowed.

 

Yamaha Pipe*…

Engine clutches only, expansion Chambers, any chassis, Age 15 min… Yamaha & ARC engines 345lbs: DAP T-50, TKM BT-82, PCR PP-100, PV92 355 lbs

These are the only engines allowed in this class. Gas and Oil fuel, absolutely no fuel additives allowed.

 

Yamaha Can Sr*…

Age 15 min — Yamaha & ARC. Stock engines only… RLV 4 hole can muffler. Gas and Oil fuel, absolutely no fuel additives allowed. Minimum weight 345lbs

 

Vintage Rear

Vintage Rear engine karts only. This class is for fun and gives our Vintage Karting Friends a place to run their Vintage karts.

 

Turtle*

Stock Yamaha engines Only. 3 hole RLV Can Mufflers.. any engine clutch and chain allowed. Min weight; 360lbs…Minimun age 61 unless you are New Karter, Gas and Oil fuel. Absolutely no fuel additives allowed.

Sr Sportsman* …

Stock Yamaha engines Only. 3 hole RLV Can Mufflers.. any engine clutch and chain allowed. Min weight; 360lbs…Age minimum 45 to 60 years old, Gas and Oil fuel. Absolutely no fuel additives allowed.

 

TaG

Cheetah SQ 350lb

EasyKart  350lbs

Parilla X30 375lbs

Motora Seven 380lbs

Leopard    365lbs

ROTAX    385lbs

SONIK TX (125) 395lbs

SONIK VX (118) 365lbs

VORTEX ROK TT 385lbs

PRD Fire Ball 03 & 07 350lbs