CLASS STRUCTURE 2018
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YAMAHA ROOKIE
Driver age: 7-10 years old Engine: Yamaha kt100 Carburetor: walbro wa55b Exhaust: spec rlv 7500 ybx Bodywork: cik bodywork weight: 225 lbs. gas/oil: Sunoco 110/redline oil tires: mg "hz/hzi" red 4.60/4.60 |
KID KART (exhibition only)
Driver age: 5-7 years old Engine: Comer c51 Bodywork: cik bodywork weight: 150 lbs. Gas/oil: 91 octane non ethanol from Kwik star across the street from fairgrounds/ redline oil tires: mg "hz/hzi" red 4.60/4.60 |
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YAMAHA CADET
Driver age: 8-12 years old Engine: Yamaha kt100 Carburetor: walbro wa55b Exhaust: spec rlv 7548 ssx Bodywork: cik bodywork weight: 235 lbs. gas/oil: Sunoco 110/redline oil tires: mg "hz/hzi" red 4.60/4.60 |
BRIGGS LO206 cadEt
Driver age: 7-12 years old Engine: bRIGGS & STRATTON 206 SEALED ENGINE Restrictor: green slide Exhaust: spec rlv w/ 4104 muffler Bodywork: cik, "full bodied", or a mix weight: 260 lbs. gas: 91 octane non ethanol from Kwik star across the street from fairgrounds tires: mg "hz/hzi" red 4.60/4.60 |
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YAMAHA JUNIOR
Driver age: 12-15 years old Engine: Yamaha kt100 Carburetor: walbro wb3a Exhaust: spec rlv 7548 ssx Bodywork: cik bodywork weight: 310 lbs. gas/oil: Sunoco 110/redline oil tires: mg "hz/hzi" red 4.60/7.10 |
BRIGGS LO206 JUNIOR
Driver age: 12-15 years old Engine: bRIGGS & STRATTON 206 SEALED ENGINE Restrictor: gold slide Exhaust: spec rlv w/ 4104 muffler Bodywork: cik, "full bodied", or a mix weight: 310 lbs. gas: 91 octane non ethanol from Kwik star across the street from fairgrounds tires: mg "hz/hzi" red 4.60/7.10 |
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YAMAHA SENIOR
Driver age: 15+ years old Engine: Yamaha kt100 Carburetor: walbro wb3a Exhaust: spec rlv 7548 ssx Bodywork: cik bodywork weight: 350 lbs. gas/oil: Sunoco 110/redline oil tires: mg "hz/hzi" red 4.60/7.10 |
BRIGGS LO206 SENIOR
Driver age: 15+ years old Engine: bRIGGS & STRATTON 206 SEALED ENGINE Exhaust: spec rlv w/ 4104 muffler Bodywork: cik, "full bodied", or a mix weight: 375 lbs. gas: 91 octane non ethanol from Kwik star across the street from fairgrounds tires: mg "hz/hzi" red 4.60/7.10 |
Davenport Kartway Yamaha and kid kart classes:
- Davenport Kartway will follow 2018 WKA engine tech rules
-An auxiliary carburetor return spring will be MANDATORY for all Yamaha engines. This rule does not apply to kid karts using a slide carb with an internal compression type return spring
-Yamaha rookie class past year champion must move out of class
Davenport Kartway Briggs LO206 classes:
Davenport Kartway will follow 2018 Factory Briggs 206 engine tech rules. Shoe type clutches only, no disc clutches allowed. All 206 engines must run spec RLV header with RLV 4104 muffler. All headers must have a protective insulating wrap. Cadet class 206 must use green slide with locking cap, Junior class 206 must use gold slide with locking cap. All karts must be equipped with an overflow catch tank. CIK bodywork, traditional 4 cycle "full bodied" bodywork, or a mix of the two will be allowed. 4.60 MG tires, front max wheel width - 5-5/8" max overall width, outside to outside. 7.10 MG tires, rear max wheel width - 8-1/2" max overall width, outside to outside. Max overall kart width in Cadet is 50", max overall kart width in Junior/Senior is 55-1/8". Spec fuel, 91 octane non ethanol from kwik star across the street from fairgrounds.
- Davenport Kartway will follow 2018 WKA engine tech rules
-An auxiliary carburetor return spring will be MANDATORY for all Yamaha engines. This rule does not apply to kid karts using a slide carb with an internal compression type return spring
-Yamaha rookie class past year champion must move out of class
Davenport Kartway Briggs LO206 classes:
Davenport Kartway will follow 2018 Factory Briggs 206 engine tech rules. Shoe type clutches only, no disc clutches allowed. All 206 engines must run spec RLV header with RLV 4104 muffler. All headers must have a protective insulating wrap. Cadet class 206 must use green slide with locking cap, Junior class 206 must use gold slide with locking cap. All karts must be equipped with an overflow catch tank. CIK bodywork, traditional 4 cycle "full bodied" bodywork, or a mix of the two will be allowed. 4.60 MG tires, front max wheel width - 5-5/8" max overall width, outside to outside. 7.10 MG tires, rear max wheel width - 8-1/2" max overall width, outside to outside. Max overall kart width in Cadet is 50", max overall kart width in Junior/Senior is 55-1/8". Spec fuel, 91 octane non ethanol from kwik star across the street from fairgrounds.
